Scientists say that 55 percent of differences in human lifespan are due to genetic makeup, much more than previously believed ...

A new study of German twins suggests that the strong connection between a young adult's cognitive ability and their future ...

Whether babies take their first steps at nine or 15 months depends on a lot of factors – including their genes, a new study has found. New parents wait with bated breath for their babies to begin ...

Add Yahoo as a preferred source to see more of our stories on Google. To any parent rocking their insessantly crying baby and wondering what they're doing wrong, Swedish researchers have some ...

A new study suggests that certain genetic differences, passed down from ancient human ancestors, and exposure to common present-day chemicals could explain why some women are more likely to develop ...

Autism spectrum disorder, also known simply as autism or ASD, is a developmental disorder that can vary widely from one patient to another. It can affect how people behave, socialize, or communicate ...

Snakes have lost the gene that encodes ghrelin, a hormone that helps regulate hunger in many vertebrates, according to a new study.

Despite widespread misconceptions, eating disorders aren’t a choice, they’re serious, potentially life-threatening conditions. While social and environmental factors do influence someone’s risk of ...

Having good genes might be a shortcut to a nice physique—but they're not everything. Here's what you need to know.

A recent study analyzed individuals from diverse backgrounds and identified various genetic clusters involved in a broad range of biological mechanisms that may help explain ancestry-associated ...