Survey reveals most users take the drugs to help them study or catch some sleep

Adult traits may not be preordained by place in the family heirarchy, researchers say

Adult traits may not be preordained by place in the family heirarchy, researchers say

Study says until 4 months of age, infants can't really place origin of tickle

Researchers say they now know of 31 gene variants linked to the skin condition

As great a threat as antibiotic-resistant infections, doctors contend

Youngsters face greater health risks from terrorist attacks, accidents and outbreaks

Doctors shouldn't automatically rule out less invasive surgery plus radiation

Tougher Penalties for Uninsured Start in 2016 Excessive Drinking Cost U.S. $249 Billion in 2010: Study

Early diagnosis might lead to lifestyle changes that slow disease progression, they say