Babies develop at very different rates, both physically and when reaching developmental milestones like sitting, walking or talking. That's why there's such a large range of what's considered normal ...

Despite national guidelines, most American teen girls chase weight loss, often at the expense of healthier habits. New research shows that intent to slim down doesn’t always align with health, ...

CHICAGO — Where a teenage girl sees herself on her school's social ladder may sway her future weight, a study of more than 4,000 girls finds. Those who believed they were unpopular gained more weight ...