Comparison of paintings shows bigger helpings over time, researchers say
Bipedalism possible more than 3 million years ago, findings suggest
Study shows that risk declines as number of children rises
Kids at risk when poor health behaviors spread among friends, study finds
Focusing on genes alone will yield incomplete picture, scientists say
Study finds they spend less time on academics with video-game systems at home
Scanning study suggests fixation on achieving goals, regardless of consequences
But it shouldn't affect mental health overall, study finds
Spirit of generosity multiplies and persists, researchers find
Childhood response to stress could lead to lasting problems, researchers say
When fibs are told, men and women do so about equally, researchers say
Brain mechanism could be key, and an existing drug might help, scientists say
Unintended effect can lead to more, not less, use, study finds
Heavy screen time in youth means trouble by mid-40s, despite activity levels, study finds
More hours spent in front of TV, computer linked to less bonding with peers, parents, researchers say
Feeling good about yourself can lower your risk more than twofold, study suggests
Study finds that one encourages the other, but early intervention can help
Comparison of Titanic and Lusitania found passengers' behavior was dictated by amount of time to cope
Here's how your youngster could benefit
Familiar things may comfort those feeling blue, but are boring for those in a positive mood, study finds
More than half expect symptoms before diagnosis, survey finds
As number of outlets for buying booze increases, so does neighborhood violence, research shows
Italian study shows sleepy students drive anyway and get into accidents
Research reveals how people rate attractiveness and decide its value
Giving your time may fulfill needs not met in your regular job, German research shows
High-functioning patients grasped interpersonal cues better after oxytocin treatment
Compassion appeared to be contagious in experiment using volunteers
Supporting nieces and nephews one way to perpetuate family genes, study suggests
Study found distrust much more damaging in marriage than in other relationships
Study suggests helping others boosts attractiveness
Reason for link unknown, but unhealthy lifestyle could be a factor, researchers suggest
Mind-body connection noted after surgical removal of tumors, study found
Eating together, limiting TV and getting enough sleep cut risk of obesity, study finds
Size advantage in school translates to success on playing field, author says
Having more of it linked to greater social support, researchers say
To break unhealthy cycle, some moms-to-be may need special support, researchers say
Not just patients but doctors, too, lose interest, study finds
It's unclear which comes first, study says
Two studies report higher levels in kids with symptoms
Elementary schools better with behavioral, emotional issues, survey found
A stable environment also helps behavior, researchers find
Certain emotional expressions, like amusement, are universal, study finds
Women quicker to gather opinions from others, survey finds
Scientists zero in on why listening to music seems so beneficial
Research may advance development of facial recognition systems, study authors suggest
Past relationships may play a role in what triggers jealousy in men and women, study finds
Posture seems to reflect thoughts of past or future, study finds
Unlike aggression and drive, leadership enhances sense of reward, researchers find
Behavioral problems are less indicative of future marijuana use, study finds
People with high self-regard use brain area less, MRI scans show