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A large study of elementary school children and college students has found greater screen time (TV and video games) is associated with more attention problems.

A study following 1,323 children in Grades 3 to 5 and 210 college students has found that children who exceeded two hours per day of screen time (TV and video games) were 1.5 to two times more likely to be considered above average in attention problems by their teachers compared to children who m

SAT and ACT results demonstrate a dramatic drop in gender ratio on math and science tests from 1981 to 1995, but little change since then.

Analysis of 30 years of SAT and ACT tests administered to the top 5% of U.S. 7th graders has found that the ratio of 7th graders scoring 700 or above on the SAT-math has dropped from about 13 boys to 1 girl to about 4 boys to 1 girl.

Patients with obstructive sleep apnea treated with CPAP therapy not only outperformed untreated OSA patients on a memory task, but they outperformed those without OSA.

A study involving 135 adults (33-65) has found that, not only did patients with obstructive sleep apnea who were being treated with CPAP therapy outperform untreated OSA patients on an overnight picture memory task, but they outperformed controls who did not have OSA.

A study of overweight children and adolescents has found that moderate to severe obstructive sleep apnea was linked to both lower academic grades and behavioral concerns.

A study involving 163 overweight children and adolescents aged 10 to 17 has revealed that moderate to severe obstructive sleep apnea was linked to both lower academic grades and behavioral concerns.

Another study demonstrating the benefits of sleep for learning motor skills (in this case, a popular video game called "Guitar Hero III".

A number of studies have shown the benefits of sleep for consolidating motor learning. A new study extends this research to a more complex motor task: "Guitar Hero III", a popular video game.

A large study reveals language and math skills were all better in 4-year-old children whose parents reported having rules about what time their child goes to bed.

A national study involving some 8,000 children, has revealed receptive and expressive language, phonological awareness, literacy and early math abilities were all better in 4-year-old children whose parents reported having rules about what time their child goes to bed.

A sleep lab study has revealed that traffic noise during sleep produces significantly slower reaction times on a vigilance task in the morning.

It’s not just a matter of quantity; quality of sleep matters too.

A Chicago study has found substantially lower reading scores in African-American children who were assessed directly after a local homicide. Hispanic children were not affected.

A study using data on reported homicides in Chicago 1994-2002 and two independent surveys of children and families in Chicago, has revealed that African-American children who were assessed directly after a local homicide occurred scored substantially lower on vocabulary and reading assessments th

Analysis of global data shows that differences in national IQs are most strongly predicted by the country's infectious disease burden.

A new analysis of data first published in 2002 in a controversial book called IQ and the Wealth of Nations and then expanded in 2006, argues that national differences in IQ are best explained not by differences in national wealth (the original researchers’ explanation), but by the toll of infecti

A new study provides evidence that it's not age per se that affects the quality of decision-making, but individual differences in processing speed and memory.

A study involving 54 older adults (66-76) and 58 younger adults (18-35) challenges the idea that age itself causes people to become more risk-averse and to make poorer decisions.

The discovery that a particular type of dendritic spine is lost with age not only provides a target for therapy, but also emphasizes the importance of building skills and expertise when young.

A rhesus monkey study has revealed which dendritic spines are lost with age, providing a new target for therapies to help prevent age-association cognitive impairment.

A large long-running study reveals that physical activity is always important for women wanting to prevent cognitive impairment in old age, but being active in adolescence is most important.

A large longitudinal study, comparing physical activity at teenage, age 30, age 50, and late life against cognition of 9,344 women, has revealed that women who are physically active at any point have a lower risk of cognitive impairment in late-life compared to those who are inactive, but teenage

  • A new study points to the importance of cognitive reserve to protect sufferers of multiple sclerosis for cognitive impairment.

Memory and learning problems often occur in multiple sclerosis, but bewilderingly, are only weakly associated with the severity of the disease.

Your teenager's school grades are usually better if they have more friends from their own school than out-of-school friends.

A study involving 629 12th-grade students from three Los Angeles-area high schools has revealed that, across both genders and all ethnicities, adolescents with more in-school friends, compared with out-of-school friends, had higher grade point averages.

More evidence that excess abdominal fat, independent of your overall BMI, places otherwise healthy, middle-aged people at greater risk for dementia later in life.

A study involving 733 participants from the Framingham Heart Study Offspring Cohort (average age 60) provides more evidence that excess abdominal fat places otherwise healthy, middle-aged people at greater risk for dementia later in life.

A long-running study has revealed that caring for a spouse with dementia is as strong a risk factor for developing Alzheimer's as having the 'Alzheimer's gene'.

A 12-year study involving 1,221 married couples ages 65 or older (part of the Cache County (Utah) Memory Study) has revealed that husbands or wives who care for spouses with dementia are six times more likely to develop Alzheimer’s themselves than those whose spouses don't have it.

  • A new study reveals that having the 'Alzheimer's gene' doesn't simply increase your risk of developing Alzheimer's, but affects how the brain is damaged.

A comprehensive study reveals how the ‘Alzheimer's gene’ (APOE ε4) affects the nature of the disease. It is not simply that those with the gene variant tend to be more impaired (in terms of both memory loss and brain damage) than those without.

A recent study indicates that the alertness benefits of caffeine may simply reflect the reversal of the fatiguing effects of caffeine withdrawal.

A study involving 379 individuals who abstained from caffeine for 16 hours has revealed little variance in levels of alertness after receiving caffeine.

  • Several recent studies and reviews suggest that the benefits of caffeine for age-related cognitive impairment and dementia are limited. It may be that the association only exists for women.

A special supplement in the Journal of Alzheimer's Disease focuses on the effects of caffeine on dementia and age-related cognitive decline. Here are the highlights:

Although roundworm research suggesting different effects at different ages is concerned with genetic manipulation, we may speculate that restricting your food intake is a bad idea for young adults but good for the old, while reducing sugar may be better for the young than it is for the old.

Studies on the roundworm C. elegans have revealed that the molecules required for learning and memory are the same from C.

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