Monday, March 27, 2017

Stress for success

studying
Lots of work? Lots at stake? Instead of giving into fear that you won’t get it all done — or done well — scientists say we should embrace the anxiety and use it to keep us focused and on our A-game.
stocknroll/ iStockphoto
A pounding heart. Tense muscles. Sweat-beaded forehead. The sight of a coiled snake or a deep chasm might trigger such stress responses. These physical reactions signal that the body is prepared to deal with a life-threatening situation.

Many people, however, respond this way to things that cannot actually hurt them. Sitting down to take a test, for example, or walking into a party won’t kill you. Still, these kinds of situations can trigger a stress response that’s every bit as real as those provoked by, say, staring down a lion. What’s more, some people can experience such reactions simply by thinking about non-threatening events.

The uneasiness we feel when we think about, anticipate or plan for non-threatening events is called anxiety. Everyone experiences some anxiety. It’s perfectly normal to feel butterflies in your belly before standing up in front of the class. For some people, however, anxiety can become so overwhelming, they start to skip school or stop going out with friends. They even can become physically ill.

The good news: Anxiety experts have a number of techniques to help people control such overwhelming feelings. Even better, new research suggests that viewing stress as beneficial not only can reduce anxious feelings, but also help us to improve our performance on challenging tasks.

Why we worry

Anxiety is related to fear. Fear is the emotion we feel when we are faced with something dangerous, whether real or not. Information from any of the five senses — or even just our imagination — can trigger fear, explains Debra Hope. She is a psychologist who specializes in anxiety at the University of Nebraska in Lincoln.

Fear is what kept our ancestors alive when a rustle in the bushes turned out to be a lion. Talk about a useful emotion! Without fear, we wouldn’t even be here today. That is because as soon as the brain detects danger, it starts a cascade of chemical reactions, Hope explains. Nerve cells, also known as neurons, start signaling to each other. The brain releases hormones — chemicals that regulate bodily activities. These particular hormones ready the body to either fight or flee. That’s the evolutionary purpose of the stress response.

Our species developed its fight-or-flight response to deal with real threats, such as a lion that our ancestors might have encountered on the savanna in Africa. 
Philippe Rouzet/ Flickr (CC BY-NC-ND 2.0)
That fight-or-flight response is how the body prepares to deal with the threat at hand. And it triggers some major changes in physiology, or how the body functions. For instance, blood is shunted away from the fingers, toes and digestive system. That blood then rushes to large muscles in the arms and legs. There, the blood provides the oxygen and nutrients needed to sustain a fight or to beat a hasty retreat.

Sometimes we don’t know if a threat is real. For example, that rustle in the bushes might just be a breeze. Regardless, our bodies don’t take chances. It’s much more prudent to get ready to confront or to flee a perceived threat than to assume all is well and do nothing. Our ancestors survived precisely because they did react, even when threats sometimes didn’t turn out to be real. As a result, evolution has primed us to be hyper-responsive to certain situations. That tendency to react to things means that our bodies are doing their jobs. That’s a good thing.

The flip side of the coin, however, is that we can experience fear even when there’s nothing to be afraid of. In fact, this often happens before a triggering event even occurs. This is called anxiety. Think of fear as a response to something as it is happening. Anxiety, on the other hand, comes with the anticipation of something that may (or may not) happen.

Whether fearful or anxious, the body responds similarly, explains Hope. We become more alert. Our muscles tense. Our hearts beat faster. In a real life-threatening situation, we would either run away or stand and fight. Anxiety, however, is all about anticipation. There is no actual fight or flight to release us from the strange things happening inside our bodies. So the hormones and brain-signaling compounds (neurotransmitters) that our bodies release don’t get cleared away.

That ongoing response can lead to lightheadedness, as our brains are denied the oxygen that’s been sent to our muscles. These reactions also can lead to a stomachache, as our food sits, undigested, in our bellies. And for some, anxiety can lead to a paralyzing inability to deal with life’s stresses.

Reducing a mountain to a molehill

People suffering from overwhelming feelings of anxiety have what’s called an anxiety disorder. This broad term includes seven different types. The three disorders that most often affect kids and teens are separation anxiety, social anxiety and obsessive-compulsive disorder, or OCD.

Separation anxiety most commonly occurs in elementary-aged kids. That makes sense. This is when many children first leave behind their parents and head off to school for much of the day. By high school, social anxiety — which centers on being accepted by others — may take over. This can include worries about saying and doing the right things, dressing the right way, or otherwise behaving in an “acceptable” manner.

By high school, many teens experience social anxiety, where they worry about fitting in, saying the wrong thing or gaining the acceptance of classmates. 
mandygodbehear/ iStockphoto
OCD is a two-part behavior. Obsessions are unwanted thoughts that keep coming back. Compulsions are actions performed over and over to try to make those obsessive thoughts go away. Someone who washes his hands for five minutes after touching anything that might have germs would have OCD. This condition tends to first emerge around age 9 (although it may not appear until closer to 19).

If you see yourself in this story, take heart: 10 to 12 percent of all kids experience anxiety disorders, says Lynn Miller. She is a psychologist specializing in anxiety disorders at Canada’s University of British Columbia, in Vancouver. If that percentage comes as a surprise, that’s probably because kids with anxiety disorders tend to be people-pleasers, Miller says. They also don’t willingly share their worries with others. The good news: Those kids often have above-average intelligence. They anticipate the future and work hard toward goals. They also tap into their natural tendency to scan the environment and search for danger, Miller explains. That is what causes them to make mountains out of molehills.

Miller works with kids of all ages to help them deal with overwhelming feelings of anxiety. She teaches those children how to deal with such feelings. Even if you don’t suffer from an anxiety disorder, keep reading. We all can benefit from a bit more calm in our lives, Miller says.

She recommends starting by breathing deeply and relaxing your muscles, group by group. Deep breathing restores oxygen to the brain. This allows the brain to clear the neurotransmitters that were released when the body turned on its stress response. That lets you think clearly again. At the same time, focusing on relaxation helps unclench muscles poised to fight or flee. This can prevent muscle cramps, headaches and even stomachaches.

Now figure out what triggered your uneasiness in the first place. Once you’ve identified its source, you can work on changing negative thoughts into more productive ones. Thinking it will be okay if an assignment isn’t done perfectly, for example, can help overcome fears of not doing well enough (which might otherwise lead to doing nothing at all).

If you love to sing but dread doing it before a group of people, start by practicing on your own, before your mirror or in front of a pet. Over time, scientists say, you should get more comfortable with the idea. 
arfo/ iStockphoto
Miller also recommends facing fears in small doses. Someone afraid of public speaking, for example, should prepare for a class presentation by first practicing in front of a mirror. Then in front of the family pet. Then a trusted family member, and so on. By gradually increasing our exposure to a situation that sparks anxiety, we can train our brains to recognize the situation as non-threatening.

Finally, know when triggers are most likely to pop up. For many students, Sunday night is tough, with a whole new week of school to face the next morning. During such times, it is particularly important to use breathing and relaxation techniques, Miller says.

Mental turnabout

Coping techniques can help overcome the anxiety created by a stressful situation. What’s more: Changing how we look at stress might actually help our bodies, minds and behavior.
Alia Crum is a psychologist at Stanford University in Palo Alto, Calif. Stress is typically viewed as unhealthy, she says. That’s because we have been taught that stress causes all kinds of physical problems, ranging from high blood pressure to depression.

But stress isn’t necessarily bad, Crum says. In fact, the stress response comes with some benefits. It allows us to ignore distractions so that we can focus on the task at hand. We even can exhibit greater-than-normal strength. The physiological response to a life-threatening situation has allowed people to lift cars in order to free people trapped underneath.

Crum’s research suggests that our bodies respond to stressful situations the way we expect them to. If we think stress is bad, we suffer. If we think stress can be a good thing — that it can actually enhance, or improve, our performance — we tend to rise to the challenge. In other words, what Crum calls mindset — our belief about a situation — matters.

The stress that accompanies school or tests can trigger ongoing feelings of anxiety. But if we think stress is bad for us, we may suffer from it. Our mindset can make a big difference in whether stress helps us or hurts us. 
StudioEDJO/ iStockphoto
To find out how mindset influences stress levels, Crum studied a group of college students. She started by having them answer a questionnaire to determine their stress mindset early in the class. The questions asked if they believed stress should be avoided. Or whether they felt stress helped them learn.

On a later date, the students swiped the insides of their mouths with cotton swabs to collect saliva. Saliva contains a stress hormone called cortisol. This hormone floods the body when the fight-or-flight response kicks in. The swabs allowed Crum to measure each student’s level of stress.

Then came the stressor: Students were asked to prepare a presentation. The class was told that five people would be selected to give their presentations to the rest of the class. Because many people find public speaking extremely stressful, this triggered a stress response in the students. During the class, students again swabbed their mouths to collect cortisol. They also were asked whether they would want feedback on their performance, should they be among the five chosen to present.

In the end, students who had a stress-is-enhancing mindset (based on the results of the questionnaire they had answered earlier) showed a shift in cortisol levels. Cortisol went up in students who didn’t have much to begin with. It went down in students who had a lot. Both changes put the students at a “peak” level of stress, explains Crum. That is, the students were stressed enough to help them perform better, but not so much that it put them into fight-or-flight mode. Students who had a stress-is-debilitating mindset did not experience such cortisol changes. The stress-is-enhancing students also were most likely to ask for feedback — a behavior that further improves performance.

How can people shift into a stress-is-enhancing mindset? Start by recognizing that stress can be useful. “We only stress about what we care about,” Crum says. She points out that achieving goals necessarily involves stressful moments. If we know that stress is coming, then we can see it for what it is: part of the process of growth and accomplishment.

Power Words

anxiety   Uneasiness, worry and apprehension. Anxiety can be a normal reaction to upcoming events or uncertain outcomes. People who experience overwhelming feelings of anxiety have what is known as an anxiety disorder. Such individuals may even develop panic attacks.

behavior  The way a person or other organism acts towards others, or conducts itself.

chasm   A great or deep gulf or fissure in the ground, such as a crevasse, gorge or breach. Or anything (or any event or situation) that would seem to present a struggle in your attempt to cross to the other side.

cortisol   A stress hormone that helps release glucose into the blood in preparation for the fight or flight response.

depression  A mental illness characterized by persistent sadness and apathy. Although these feelings can be triggered by events, such as the death of a loved one or the move to a new city, that isn’t typically considered an “illness” — unless the symptoms are prolonged and harm an individual’s ability to perform normal daily tasks (such as working, sleeping or interacting with others). People suffering from depression often feel they lack the energy needed to get anything done. They may have difficulty concentrating on things or showing an interest in normal events. Many times, these feelings seem to be triggered by nothing; they can appear out of nowhere.

evolutionary   An adjective that refers to changes that occur within a species over time as it adapts to its environment. Such evolutionary changes usually reflect genetic variation and natural selection, which leave a new type of organism better suited for its environment than its ancestors. The newer type is not necessarily more “advanced,” just better adapted to the conditions in which it developed.

fight-or-flight response   The body’s response to a threat, either real or imagined. During the fight-or-flight response, digestion shuts down as the body prepares to deal with the threat (fight) or to run away from it (flight).

high blood pressure   The common term for a medical condition known as hypertension. It puts a strain on blood vessels and the heart.

hormone   (in zoology and medicine)  A chemical produced in a gland and then carried in the bloodstream to another part of the body. Hormones control many important body activities, such as growth. Hormones act by triggering or regulating chemical reactions in the body.

mindset   In psychology, the belief about and attitude toward a situation that influences behavior. For instance, holding a mindset that stress may be beneficial can help improve performance under pressure.

neuron or nerve cell   Any of the impulse-conducting cells that make up the brain, spinal column and nervous system. These specialized cells transmit information to other neurons in the form of electrical signals.

neurotransmitter    A chemical substance that is released at the end of a nerve fiber. It transfers an impulse to another nerve, a muscle cell or some other structure.

obsession   A focus on certain thoughts, almost against your will. This intense focus can distract someone from the issues that he or she should be addressing.

obsessive-compulsive disorder   Best known by its acronym, OCD, this mental disorder involves obsessive thoughts and compulsive behavior. For example, someone who obsesses about germs might compulsively wash his hands or refuse to touch things like doorknobs.

physical   (adj.) A term for things that exist in the real world, as opposed to in memories or the imagination.

physiology  The branch of biology that deals with the everyday functions of living organisms and how their parts function.

psychology   The study of the human mind, especially in relation to actions and behavior. Scientists and mental-health professionals who work in this field are known as psychologists.

questionnaire  A list of identical questions administered to a group of people to collect related information on each of them. The questions may be delivered by voice, online or in writing. Questionnaires may elicit opinions, health information (like sleep times, weight or items in the last day’s meals), descriptions of daily habits (how much exercise you get or how much TV do you watch) and demographic data (such as age, ethnic background, income and political affiliation).

separation anxiety   Feelings of unease and fear that develop when someone (usually a child) becomes separated from his or her family or other trusted people.

social anxiety   Feelings of apprehension caused by social situations. People with this disorder may be so worried about interacting with others that they withdraw from social events altogether.

stress  (in biology) A factor, such as unusual temperatures, moisture or pollution, that affects the health of a species or ecosystem

IQ is in the genes

Kids benefit when their parents spend quality time encouraging them to think and to take on challenging pursuits. But this won’t improve a child’s IQ, a new study finds.
PeopleImages/iStockphoto
How smart you are doesn’t depend on how your parents raised you, a new study concludes.
Their reading to you, talking with you at the dinner table and taking an active interest in your life could make you happy. And that’s important. But it won’t make you smarter, says Kevin Beaver.

As a criminologist,he studies the causes of crime and ways to prevent it. Beaver works at Florida State University in Tallahassee. His research team wanted to know if different parenting styles influenced a child’s intelligence. After all, Beaver notes, “intelligence has been linked to crime.”

Previous research has suggested different types of parenting could affect a child’s IQ. Short for intelligence quotient, IQ is a score that measures human intelligence.
But those earlier data hadn’t separated out the effect of genetics on IQ. Beaver’s team wanted to know: Are children’s IQ scores really affected by how their parents raised them? Or are those scores just a reflection of what genes a child inherited?

To find out, the team pored over information from a study of more than 15,000 U.S. middle- and high-school students. It’s called the National Longitudinal Study of Adolescent Health.
Starting in the 1994-to-1995 school year, researchers had asked students a series of questions. For instance: How warm and loving are your parents? How much do you talk with them? How close do you feel to your parents? How much do you think they care about you?

Students also were given a list of 10 activities. Then the questionnaire asked how many of those activities students had done with their parents in the previous week. Did they play sports together? Go shopping? Talk with each other over dinner? Watch a movie together?
Students also answered questions about how permissive their parents were. For example, did their parents let them choose their own friends, choose what to watch on TV or choose for themselves when to go to bed?

The researchers then gave the students a test to gauge their IQ. Called a Picture Vocabulary Test, it asked the students to link words and images. Scores on this test have been linked repeatedly to IQ. Later in life, between the ages of 18 and 26, these people were tested again.

Beaver’s group was especially interested in results from a group of about 220 students who had been adopted. The parents who raised them had not passed on any genes to them. So if there was a link between the students’ IQs and the way their parents raised them, the researchers should see it most clearly in the adopted students’ scores.

But no such link emerged. Whether students reported their parents cared about them and did things with them — or reported that they did not — it had no impact on the their IQ. This means a person’s IQ is largely the result of the genes we inherit from our biological parents.

What does Beaver make of the new findings?
We all have strengths and weaknesses, he says. That means some of us will have to work harder than others to do well. And in some cases, other people will always be better than us at certain things.
“The key is to find what you are good at and what you enjoy.” Then, he says, “Work your hardest to become the best you can be.”

J.C. Barnes is a criminologist who studies how genetics and the environment affect crime. He works at the University of Cincinnati in Ohio. He agrees that the new study shows parents’ behavior does not affect a child’s IQ. Still, he says, it’s important that all parents provide a nurturing environment for their children.
Parents who do this “give their child the best chance to succeed — not because they improve the child’s IQ, but because they allow the child to develop into a healthy individual,” he says.

Power words

adolescent  A person at a transitional stage of physical and psychological development — one that begins at the onset of puberty, typically between the ages of 11 and 13, and ends with adulthood.

criminologist  Someone who studies criminal behaviors, their rates among different segments of the population, factors that underlie crime, and ways to limit crime.

gene  (adj. genetic) A segment of DNA that codes, or holds instructions, for producing a protein. Offspring inherit genes from their parents. Genes influence how an organism looks and behaves.

IQ  Short for intelligence quotient. Through standardized tests, schools and others measure IQ. This score should not change much, if at all, throughout a healthy person’s lifetime. IQ does not measure what someone knows or has learned. Rather it measures one’s capacity to learn, reason and understand information. That information can be delivered in different ways, such as through written words, or as symbols or numbers. Some aspects of the test measure an individual’s ability to learn by asking someone to recall information presented minutes earlier or in different places over a brief span on a computer screen.

longitudinal  (in research) A research project that collects data over a long time; or data representing a long period.

IQ chart

IQ chart





IQ Range  Classification
Above 145                Genius or near genius
130-145                Very superior
115-130                Superior
85-115                Normal
70-85               Dullness
Below 70               Borderline deficiency

Average IQ by Country

Country/Region

IQ (2003)                 IQ (2010)
Hong Kong 107 109
Singapore 105 109
North Korea 105 106
South Korea 106 106
Japan 105 106
People' Republic of China 101 106
Taiwan 104 106
Italy 102 103
Mongolia 99 102
Iceland 98 102
Switzerland 101 102
Austria 102 100
Luxembourg 101 100
Netherlands 102 100
Norway 99 100
United Kingdom 100 100
Belgium 100 100
Canada 98 100
Estonia 98 99
Finland 97 99
Poland 99 99
Germany 102 98
New Zealand 100 98
Sweden 101 98
Andorra 97 98
Australia 98 98
Czech Republic 97 98
Denmark 98 98
France 98 98
Latvia 97 98
Spain 97 98
United States 98 98
Russia 97 98
Hungary 99 97
Belarus 96 97
Malta 96 97
Ukraine 96 97
Slovakia 96 96
Uruguay 96 96
Moldova 95 96
Israel 95 96
Armenia 94 95
Portugal 95 95
Georgia 94 95
Kazakhstan 93 95
Romania 94 94
Vietnam 96 94
Bulgaria 93 93
Argentina 95 93
Malaysia 92 92
Greece 92 92
Ireland 93 92
Cambodia 90 92
Brunei 92 91
Cyprus 92 91
Republic of Macedonia 93 91
Thailand 91 91
Lithuania 96 90
Albania 90 90
Bermuda N/A 90
Kyrgyzstan 88 90
Croatia 90 90
Bosnia and Herzegovina N/A 90
Mexico 88 90
Turkey 90 90
Chile 93 90
Laos 89 89
Mauritius 83 89
Costa Rica 90 89
Cook Island N/A 89
Ecuador 83 89
Suriname 89 89
Samoa 88 88
Bolivia 86 88
Guyana 84 88
Myanmar 87 88
Azerbaijan 87 87
Brazil 87 87
East Timor N/A 97
Iraq 87 87
Tajikistan 87 87
Turkmenistan 87 87
Uzbekistan 87 87
Indonesia 88 86
Kuwait 84 86
Philippines 86 86
Seychelles 83 86
Cuba 85 86
Tonga 86 85
Fiji 85 85
New Caledonia N/A 85
Kiribati 85 85
Trinidad and Tobago 82 85
Yemen 83 85
Belize 84 85
Peru 88 84
Iran 84 84
Marshall Islands 84 84
Pakistan 82 84
Panama 84 84
Paraguay 85 84
Colombia 87 84
Puerto Rico 84 84
Afghanistan 83 84
Federated States of Micronesia 84 84
Saudi Arabia 83 84
Solomon Island 84 84
The Bahamas 80
United Arab Emirates 83 84
Vanuatu 84 84
Morocco 84 83
Jordan 85 83
Venezuela 86 83

Famous people IQ

Name

Occupation Country IQ
Adolf Hitler Nazi leader Germany 141
Al Gore Politician USA 134
Albert Einstein Physicist USA 160
Albrecht von Haller Medical scientist Switzerland 190
Alexander Pope Poet & writer England 180
Sir Andrew J. Wiles Mathematician England 170
Andrew Jackson President USA 123
Andy Warhol Pop artist USA 86
Anthonis van Dyck Painter Dutch 155
Antoine Arnauld Theologian France 190
Arne Beurling Mathematician Sweden 180
Arnold Schwarzenegger Actor/politician Austrian 135
Baruch Spinoza Philosopher Holland 175
Benjamin Franklin Writer, scientist & politician USA 160
Benjamin Netanyahu Israeli Prime Minister Israel 180
Bill Gates CEO, Microsoft USA 160
Bill (William) Jefferson Clinton President USA 137
Blaise Pascal Mathematician & religious philosopher France 195
Bobby Fischer Chess player USA 187
Buonarroti Michelangelo Artist, poet & architect Italy 180
Carl von Linn Botanist Sweden 165
Charles Darwin Naturalist England 165
Charles Dickens Writer England 180
Christopher Michael Langan Bouncer & scientist & philosopher USA 195
Sir Clive Sinclair Inventor England 159
David Hume Philosopher & politician Scotland 180
Dr David Livingstone Explorer & doctor Scotland 170
Donald Byrne Chess Player Irland 170
Emanuel Swedenborg thologian/scientist/philosopher Sweden 205
Sir Francis Galton Scientist & doctor British 200
Friedrich Wilhelm Joseph von Schelling Philosopher Germany 190
Galileo Galilei Physicist & astronomer & philosopher Italy 185
Geena (Virginia) Elizabeth Davis Actress USA 140
Georg Friedrich Händel Composer Germany 170
George Wilhelm Friedrich Hegel Philosopher Germany 165
George Berkeley Philosopher Ireland 190
George H. Choueiri A.C.E Leader Lebanon 195
George Eliot (Mary Ann Evans) Writer England 160
George Sand (Amantinr Aurore Lucile Dupin) Writer France 150
George Walker Bush President USA 125
George Washington President USA 118
Gottfried Wilhelm von Leibniz philospher / scientist / lawyer Germany 205
Hans Dolph Lundgren Actor Sweden 160
Hans Christian Andersen writer / poet Denmark 145
Hillary Diane Rodham Clinton US Politician USA 140
Hjalmar Horace Greeley Schacht President of the Reichsbank / Nazi Officer Germany 143
Honoré de Balzac (Honore Balzac) Writer / novelist France 155
Hugo Grotius (Huig De Groot) Jurist Holland 200
Hypatia of Alexandria Philosopher & mathematician Alexandria 170
Immanuel Kant Philosopher Germany 175
Sir Isaac Newton Scientist England 190
Jakob Ludwig Felix Mendelssohn Bartholdy Composer Germany 165
James Cook Explorer England 160
James Watt Physicist & technician Scotland 165
James Howard Woods Actor USA 180
Jayne Mansfield
--
USA 149
Jean Marie Auel Writer Finland/ America 140
Jodie Foster Actor USA 132
Johann Sebastian Bach Composer Germany 165
Johann Strauss Composer Germany 170
Johann Wolfgang von Goethe
--
Germany 210
Johannes Kepler Mathematician, physicist & astronomer Germany 175
John Adams President USA 137
John F. Kennedy Ex-President USA 117
John H. Sununu Chief of Staff for President Bush USA 180
John Quincy Adams President USA 153
John Stuart Mill Universal Genius England 200
JohnLocke Philosopher England 165
Jola Sigmond Teacher Sweden 161
Jonathan Swift Writer & theologian England 155
Joseph Haydn Composer Austria 160
Joseph Louis Lagrange Mathematician & astronomer Italy/France 185
Judith Polgar Chess player Hungary 170
Kim Ung-Yong
--
Korea 200
Kimovitch Garry Kasparov Chess player Russia 190
Leonardo da Vinci Universal Genius Italy 220
Lord Byron Poet & writer England 180
Louis Napoleon Bonaparte Emperor France 145
Ludwig van Beethoven Composer Germany 165
Ludwig Wittgenstein Philosopher Austria 190
Madame de Stael Novelist & philosopher France 180
Madonna Singer USA 140
Marilyn vos Savant Writer USA 186
Martin Luther Theorist Germany 170
Miguel de Cervantes Writer Spain 155
Nicolaus Copernicus Astronomer Poland 160
Nicole Kidman Actor USA 132
Paul Allen Microsoft cofounder USA 160
Philip Emeagwali Mathematician Nigeria 190
Phillipp Melanchthon Humanist & theologian Germany 190
PierreSimon de Laplace Astronomer & mathematician France 190
Plato Philosopher Greece 170
Ralph Waldo Emerson Writer USA 155
Raphael Artist Italy 170
Rembrandt van Rijn Artist Holland 155
Ren Descartes Mathematician & philosopher France 185
Richard Nixon Ex-President USA 143
Richard Wagner Composer Germany 170
Robert Byrne Chess Player Irland 170
Rousseau Writer France 150
Sarpi Councilor & theologian & historian Italy 195
Shakira Singer Colombia 140
Sharon Stone Actress USA 154
Sofia Kovalevskaya Mathematician & writer Sweden/Russia 170
Stephen W. Hawking Physicist England 160
Thomas Chatterton Poet & writer England 180
Thomas Jefferson President USA 138
Thomas Wolsey Politician England 200
Truman Cloak
--
--
165
Ulysses S. Grant President USA 110
Voltaire Writer France 190
William James Sidis
--
USA 200
William Pitt (the Younger) Politician England 190
Wolfgang Amadeus Mozart Composer Austria 165

IQ scale

IQ scale

What does the IQ scale measure? What is an average score? How high can an IQ be? Here are some answers to these and other questions.

First of all, the concept of IQ was developed by either the German psychologist and philosopher Wilhelm Stern in 1912, or by Lewis Terman in 1916, depending on which sources you consult. Intelligence testing was first done on a large scale before either of these dates. In 1904 psychologist Alfred Binet was commissioned by the French government to create a testing system to differentiate intellectually normal children from those who were inferior.

From Binet's work the IQ scale called the "Binet Scale," (and later the "Simon-Binet Scale") was developed. Sometime later, "intelligence quotient," or "IQ," entered our vocabulary. Lewis M. Terman revised the Simon-Binet IQ Scale, and in 1916 published the Stanford Revision of the Binet-Simon Scale of Intelligence (also known as the Stanford-Binet). The following scale resulted for classifying IQ scores:

IQ Scale
Over 140 - Genius or almost genius
120 - 140 - Very superior intelligence
110 - 119 - Superior intelligence
90 - 109 - Average or normal intelligence
80 - 89 - Dullness
70 - 79 - Borderline deficiency in intelligence
Under 70 - Feeble-mindedness

Normal Distribution of IQ Scores
50% of IQ scores fall between 90 and 110
70% of IQ scores fall between 85 and 115
95% of IQ scores fall between 70 and 130
99.5% of IQ scores fall between 60 and 140

Low IQ & Mental Retardation
An IQ under 70 is considered as "mental retardation" or limited mental ability. 5% of the population falls below 70 on IQ tests. The severity of the mental retardation is commonly broken into 4 levels:
50-70 - Mild mental retardation (85%)
35-50 - Moderate mental retardation (10%)
20-35 - Severe mental retardation (4%)
IQ < 20 - Profound mental retardation (1%)

High IQ & Genius IQ
Genius or near-genius IQ is considered to start around 140 to 145. Less than 1/4 of 1 percent fall into this category. Here are some common designations on the IQ scale:
115-124 - Above average
125-134 - Gifted
135-144 - Very gifted
145-164 - Genius
165-179 - High genius
180-200 - Highest genius

What is IQ — and how much does it matter?

Student thinking
IQ plays a role in how successful we become. But working on projects close to the heart and knuckling down to see them through may be more important.
iStockPhoto
Earlier this year, 11-year-old Kashmea Wahi of London, England scored 162 on an IQ test. That’s a perfect score. The results were published by Mensa, a group for highly intelligent people. Wahi is the youngest person ever to get a perfect score on that particular test.

Does her high score mean she will go on to do great things — like Stephen Hawking or Albert Einstein, two of the world’s greatest scientists? Maybe. But maybe not.

IQ, short for intelligence quotient, is a measure of a person’s reasoning ability. In short, it is supposed to gauge how well someone can use information and logic to answer questions or make predictions. IQ tests begin to assess this by measuring short- and long-term memory. They also measure how well people can solve puzzles and recall information they’ve heard — and how quickly.

Every student can learn, no matter how intelligent. But some students struggle in school because of a weakness in one specific area of intelligence. These students often benefit from special education programs. There, they get extra help in the areas where they’re struggling. IQ tests can help teachers figure out which students would benefit from such extra help.
playing chess
Chess is a game of skill and strategy.  Intelligence helps, but so does really caring about it and having the perseverence to slowly build skills in it.
 
PeopleImages/iStockphoto
IQ tests also can help identify students who would do well in fast-paced “gifted education” programs. Many colleges and universities also use exams similar to IQ tests to select students. And the U.S. government — including its military — uses IQ tests when choosing who to hire. These tests help predict which people would make good leaders, or be better at certain specific skills.

It’s tempting to read a lot into someone’s IQ score. Most non-experts think intelligence is the reason successful people do so well. Psychologists who study intelligence find this is only partly true. IQ tests can predict how well people will do in particular situations, such as thinking abstractly in science, engineering or art. Or leading teams of people. But there’s more to the story. Extraordinary achievement depends on many things. And those extra categories include ambition, persistence, opportunity, the ability to think clearly — even luck.
Intelligence matters. But not as much as you might think.

Measuring IQ

IQ tests have been around for more than a century. They were originally created in France to help identify students who needed extra help in school.

The U.S. government later used modified versions of these tests during World War I. Leaders in the armed forces knew that letting unqualified people into battle could be dangerous. So they used the tests to help find qualified candidates. The military continues to do that today. The Armed Forces Qualification Test is one of many different IQ tests in use.

IQ tests have many different purposes, notes Joel Schneider. He is a psychologist at Illinois State University in Normal. Some IQ tests have been designed to assess children at specific ages. Some are for adults. And some have been designed for people with particular disabilities.

But any of these tests will tend to work well only for people who share a similar cultural or social upbringing. “In the United States,” for instance, “a person who has no idea who George Washington was probably has lower-than-average intelligence,” Schneider says. “In Japan, not knowing who Washington was reveals very little about the person's intelligence.”

Questions about important historical figures fall into the “knowledge” category of IQ tests. Knowledge-based questions test what a person knows about the world. For example, they might ask whether people know why it’s important to wash their hands before they eat.
test question
Reasoning questions like this one ask test-takers to figure out what would come next in the pattern.
Life of Riley/Wikimedia
 
IQ tests also ask harder questions to measure someone’s knowledge. What is abstract art? What does it mean to default on a loan? What is the difference between weather and climate? These types of questions test whether someone knows about things that are valued in their culture, Schneider explains.
Such knowledge-based questions measure what scientists call crystallized intelligence. But some categories of IQ tests don’t deal with knowledge at all.

Some deal with memory. Others measure what's called fluid intelligence. That’s a person’s ability to use logic and reason to solve a problem. For example, test-takers might have to figure out what a shape would look like if it were rotated. Fluid intelligence is behind “aha” moments — times when you suddenly connect the dots to see the bigger picture.

Aki Nikolaidis is a neuroscientist, someone who studies structures in the brain. He works at the University of Illinois at Urbana-Champaign. And he wanted to know what parts of the brain are active during those “aha” episodes.

In a study published earlier this year, he and his team studied 71 adults. The researchers tested the volunteers’ fluid intelligence with a standard IQ test that had been designed for adults. At the same time, they mapped out which areas of test takers’ brains were working hardest. They did this using a brain scan called magnetic resonance spectroscopy, or MRS. It uses magnets to hunt for particular molecules of interest in the brain.

As brain cells work, they gobble up glucose, a simple sugar, and spit out the leftovers. MRS scans let researchers spy those leftovers. That told them which specific areas of people’s brains were working hard and breaking down more glucose.

People who scored higher on fluid intelligence tended to have more glucose leftovers in certain parts of their brains. These areas are on the left side of the brain and toward the front. They’re involved with planning movements, with spatial visualization and with reasoning. All are key aspects of problem solving.
“It’s important to understand how intelligence is related to brain structure and function,” says Nikolaidis. That, he adds, could help scientists develop better ways to boost fluid intelligence.

Personal intelligence

IQ tests “measure a set of skills that are important to society,” notes Scott Barry Kaufman. He’s a psychologist at the University of Pennsylvania in Philadelphia. But, he adds, such tests don’t tell the full story about someone’s potential. One reason: IQ tests favor people who can think on the spot. It’s a skill plenty of capable people lack.

It’s also something Kaufman appreciates as well as anyone.
daydreaming teen
Daydreaming may seem like a waste of time, but research by Scott Barry Kaufman suggests that it’s actually an important part of creative problem-solving.
 
Jakov Cordina/iStockphoto
As a boy, he needed extra time to process the words he heard. That slowed his learning. His school put him into special education classes, where he stayed until high school. Eventually, an observant teacher suggested he might do well in regular classes. He made the switch and, with hard work, indeed did well.

Kaufman now studies what he calls “personal intelligence.” It’s how people’s interests and natural abilities combine to help them work toward their goals. IQ is one such ability. Self-control is another. Both help people focus their attention when they need to, such as at school.

Psychologists lump together a person’s focused attention, self-control and problem-solving into a skill they call executive function. The brain cells behind executive function are known as the executive control network. This network turns on when someone is taking an IQ test. Many of the same brain areas are involved in fluid intelligence.

But personal intelligence is more than just executive function. It’s tied to personal goals. If people are working toward some goal, they’ll be interested and focused on what they are doing. They might daydream about a project even while not actively working on it. Although daydreaming may seem like a waste of time to outsiders, it can have major benefits for the person doing it.

When engaged in some task, such as learning, people want to keep at it, Kaufman explains. That means they will push forward, long after they might otherwise have been expected to give up. Engagement also lets a person switch between focused attention and mind wandering.

That daydreaming state can be an important part of intelligence. It is often while the mind is “wandering” that sudden insights or hunches emerge about how something works.
brain scan
People doing a creative thinking task use two different brain networks at the same time, suggesting that creativity is a unique state of mind.
 
Scott Barry Kaufman/Nature
While daydreaming, a so-called default mode network within the brain kicks into action. Its nerve cells are active when the brain is at rest. For a long time, psychologists thought the default mode network was active only when the executive control network rested. In other words, you could not focus on an activity and daydream at the same time.

To see if that was really true, last year Kaufman teamed up with researchers at the University of North Carolina in Greensboro and at the University of Graz in Austria. They scanned the brains of volunteers using functional magnetic resonance imaging, or fMRI. This tool uses a strong magnetic field to record brain activity.

As they scanned the brains of 25 college students, the researchers asked the students to think of as many creative uses as they could for everyday objects. And as students were being as creative as possible, parts of both the default mode network and the executive control network lit up. The two systems weren’t at odds with each other. Rather, Kaufman suspects, the two networks work together to make creativity possible.
“Creativity seems to be a unique state of consciousness,” Kaufman now says. And he thinks it is essential for problem-solving.

Turning potential into achievement

Just being intelligent doesn’t mean someone will be successful. And just because someone is less intelligent doesn’t mean that person will fail. That’s one take-home message from the work of people like Angela Duckworth.
studying teen
Scientists find that students with more grit study harder than their peers and earn higher grades.
encrier/iStockphoto
She works at the University of Pennsylvania in Philadelphia. Like many other psychologists, Duckworth wondered what makes one person more successful than another. In 2007, she interviewed people from all walks of life. She asked each what they thought made someone successful. Most people believed intelligence and talent were important. But smart people don’t always live up to their potential.

When Duckworth dug deeper, she found that the people who performed best — those who were promoted over and over, or made a lot of money — shared a trait independent of intelligence. They had what she now calls grit. Grit has two parts: passion and perseverance. Passion points to a lasting interest in something. People who persevere work through challenges to finish a project.

Duckworth developed a set of questions to assess passion and perseverance. She calls it her “grit scale.”
In one study of people 25 and older, she found that as people age, they become more likely to stick with a project. She also found that grit increases with education. People who had finished college scored higher on the grit scale than did people who quit before graduation. People who went to graduate school after college scored even higher.

She then did another study with college students. Duckworth wanted to see how intelligence and grit affected performance in school. So she compared scores on college-entrance exams (like the SAT), which estimate IQ, to school grades and someone’s score on the grit scale. Students with higher grades tended to have more grit. That’s not surprising. Getting good grades takes both smarts and hard work. But Duckworth also found that intelligence and grit don’t always go hand in hand. On average, students with higher exam scores tended to be less gritty than those who scored lower.

But some people counter that this grit may not be all it’s cracked up to be. Among those people is Marcus Credé. He’s a psychologist at Iowa State University in Ames. He recently pooled the results of 88 studies on grit. Together, those studies involved nearly 67,000 people. And grit did not predict success, Credé found.
spelling bee
Students who perform best in the National Spelling Bee are those with grit. Their passion, drive, and persistance pay off and help them succeed against less "gritty" competitors.
Scripps National Spelling Bee/Flickr
 
However, he thinks grit is very similar to conscientiousness. That someone’s ability to set goals, work toward them and think things through before acting. It’s a basic personality trait, Credé notes — not something that can be changed.

“Study habits and skills, test anxiety and class attendance are far more strongly related to performance than grit,” Credé concludes. “We can teach [students] how to study effectively. We can help them with their test anxiety,” he adds. “I’m not sure we can do that with grit.”

In the end, hard work can be just as important to success as IQ. “It's okay to struggle and go through setbacks,” Kaufman says. It might not be easy. But over the long haul, toughing it out can lead to great accomplishments.

Power Words

anxiety       (adj. anxious) A nervous or almost fearful reaction to events causing excessive uneasiness and apprehension. People with anxiety may even develop panic attacks.

brain scan    The use of an imaging technology, typically using X rays or a magnetic resonance imaging (or MRI) machine, to view structures inside the brain. With MRI technology — especially the type known as functional MRI (or fMRI) — the activity of different brain regions can be viewed during an event, such as viewing pictures, computing sums or listening to music.

crystallized intelligence    How many things a person knows, such as facts or definitions of words.
culture    (in social science) The sum total of typical behaviors and social practices of a related group of people (such as a tribe or nation). Their culture includes their beliefs, values, and the symbols that they accept and or use. It’s passed on from generation to generation through learning. Once thought to be exclusive to humans, scientists have recognized signs of culture in several other animal species, such as dolphins and primates.

default mode network    An area of the brain where nerve cells rev up their activity at those times when someone is not focused on a specific task. These cells work behind the scenes when someone is daydreaming, sleeping or otherwise at rest.

executive control network    A network of brain areas where nerve cells become active when someone is focusing their attention on a specific task. These cells are involved with focused attention, self-control and problem-solving.

executive function    The term that includes all of the brain functions needed for self-regulation, self-control and problem-solving. Executive function requires good working memory to hold several pieces of information in the brain at once. It also includes multi-tasking, prioritizing, reasoning, focus, concentration, goal setting and controlling impulses.

fluid intelligence    A measure of how good a person is at solving complex problems that don’t depend on prior information.

fMRI (functional magnetic resonance imaging)    A special type of machine used to study brain activity. It uses a strong magnetic field to monitor blood flow in the brain. Tracking the movement of blood can tell researchers which brain regions are active. (See also, MRI or magnetic resonance imaging)
glucose    A simple sugar that is an important energy source in living organisms. It is half of the molecule that makes up table sugar (also known as sucrose).

graduate school    Programs at a university that offer advanced degrees, such as a Master’s or PhD degree. It’s called graduate school because it is started only after someone has already graduated from college (usually with a four-year degree).

grit  Passion and perseverance for long-term goals.
insight    The ability to gain an accurate and deep understanding of a situation just by thinking about it, instead of working out a solution through experimentation.

intelligence    The ability to collect and apply knowledge and skills.

IQ, or intelligence quotient    A number representing a person’s reasoning ability. It’s determined by dividing a person’s score on a special test by his or her age, then multiplying by 100.

magnetic resonance imaging (MRI)    An imaging technique to visualize soft, internal organs, like the brain, muscles, heart and cancerous tumors. MRI uses strong magnetic fields to record the activity of individual atoms.

magnetic resonance spectroscopy (MRS)    An imaging technique to visualize specific molecules in the brain. MRS uses two sets of magnets to detect the presence of individual atoms within molecules of interest.

neuron or nerve cell    Any of the impulse-conducting cells that make up the brain, spinal column and nervous system. These specialized cells transmit information to other neurons in the form of electrical signals.
psychology    (adj. psychological) The study of the human mind, especially in relation to actions and behavior. To do this, some perform research using animals. Scientists and mental-health professionals who work in this field are known as psychologists.

special education    Classes that are geared toward helping students who have trouble learning in a traditional classroom. Teachers are trained to help students who have disabilities, behavior disorders, or vision/hearing impairments.

What is IQ

I.Q. (intelligence quotient) in general, is an assessment of your ability to think and reason. IQ score is a standardized way of comparing this ability with the majority of people the same age as you are. A score of 100 means that compared to these people in your general age group that you have basically an average intelligence. Most psychologists would say those scoring in a range of 95 to 105 are of a normal intelligence or have an average IQ. Actual IQ score may vary plus or minus five points since it is very difficult to get an IQ score with complete accuracy. Keep in mind, there are many outside factors that may have a negative impact on your score. For instance, if you are not feeling well at the time of taking the test. Or perhaps you are distracted by something on that particular day. These things may affect your score. Additionally, IQ is not the be all end all of a person's abilities in life. IQ score fails to measure things such as manual dexterity (obviously), musical talent, and a slew of other abilities that may lead one to many different successes in life. However, your score on an IQ test will give you a pretty accurate indication of the ability you possess to think, reason and solve problems which can often be critical in many phases of your life