Beware of 'Second-Impact Syndrome' After Concussions

SUNDAY, May 22 (HealthDay News) -- Young athletes who return to play before a concussion fully heals and sustain another head injury can suffer serious and potentially deadly brain complications, an expert warns.

Genes Tied to Severity of Cystic Fibrosis Identified

SUNDAY, May 22 (HealthDay News) -- The severity of cystic fibrosis, a life-threatening hereditary condition that affects the lungs and digestive system, seems to be influenced by genetic variations, researchers have found.

Blood Pressure Drug Helps Those With Mild Heart Failure

SUNDAY, May 22 (HealthDay News) -- New Swedish research suggests that the drug Inspra reduces the threat of major cardiovascular complications among patients who have a mild form of heart failure.