Pop star's own battle with bipolar disorder helped to inspire new photo campaign that seeks to alter stereotypes

Study counters notion that vigorous exercise is key to battling the illness

Except for IVF, success rates for many procedures remain in doubt, researchers say

Many patients who should take it don't, researchers say

Many patients who should take it don't, researchers say

Researchers credit Obamacare, but difficulties persist for uninsured and people with high deductibles

Study found seniors with mild cognitive impairment saw gains in thinking, memory skills after six months of workouts

93 percent had tumor growth controlled for median of more than 8 months, researchers report

Yet, many drug users still share needles sometimes, report finds

Brazilian baby developed vision-threatening condition after being exposed to virus in womb