Atrial fibrillation is a potentially fatal condition affecting more and more people

Early study also found survival odds rose with exercise capacity

Researchers say one-third of these deaths could be prevented

Changes in arteries seen while still in childhood

Study finds keeping resuscitation efforts going for longer could improve brain function in survivors

Study finds keeping resuscitation efforts going for longer could improve brain function in survivors

Study compared short-term survival in severely injured patients

Research suggests that drinking the brew even six hours prior to bedtime upsets slumber

Transplant success rates similar across broad range of ages, study shows

Although dropping for blacks, overall death rates still higher than for whites, study finds