Canadian researchers find that fine particle pollution (PM2.5) can cause hidden heart damage, challenging current air quality standards.

Wladimir Vera Villamizar, a 33-year-old welder, had a whole lung removed — an uncommon procedure that requires months of intensively managed recovery, according to doctors.

The Army is preparing to roll out a new policy that could lead to soldiers diagnosed with a chronic skin condition that causes painful razor bumps and scarring to be kicked out of the service ...

The aim is to find and treat lung cancers early, before they grow and spread, to improve the chance of survival. Here’s what’s involved.

Interactive map reveals how safe you would be if nuclear bomb hits near you with shocking results It's both terrifying and fascinating ...