Researchers focused on street kids in Canada

George W. Bush's Heart Trouble More Serious Than Thought: Report 'Craze' Sports Supplement Contains Meth-Like Substance: Report

But more research is needed on safety, long-term effectiveness and side effects, researchers say

Pregnant women's exposure to air pollution from traffic, industry still too high, European study finds

Here's a look at the different types

Each day, countless Americans grab an afternoon snack to tide them over until dinner. Now, research from the University of Missouri shows that snacking on higher-protein foods, such as certain types of Greek yogurt, can increase fullness...

All that's different today are the numbers: one-third of Americans now obese

It's a 'great medical success story,' expert says

Patient satisfaction, more than quality of care, appears to determine income, study suggests

Patient satisfaction, more than quality of care, appears to determine income, study suggests