Here's why your body needs it

Over half of models surveyed said they'd been asked to lose weight or change their body shape

Women have slightly higher chances of complications if giving birth Saturday or Sunday, research suggests

But cases of drug-resistant strains of AIDS virus are still rare, doctors say

They're also more likely to suffer depression, anxiety -- and new moms particularly vulnerable

It's tied to higher concussion risk in players, study finds

They're also more likely to suffer depression, anxiety -- and new moms particularly vulnerable

It's tied to higher concussion risk in players, study finds

Long and short of the findings: Scientists may better understand growth disorders

This was true even in normal-weight women, study suggests