Overweight & Obesity

New study unravels the complexity of childhood obesity

The World Health Organization has estimated more than 340 million children and adolescents ages 5-19 are overweight or obese, and the epidemic has been linked to more deaths worldwide than those caused by being underweight.

Psychology & Psychiatry

After 150, Facebook friends are meaningless

(PhysOrg.com) -- According to Oxford University's professor of evolutionary anthropology, Robin Dunbar, after you have amassed 150 friends on Facebook, any more are meaningless because the human brain can only remember 150 ...