Whether or not you have loved ones in the Middle East, the horrors of the violence and suffering in Israel and Gaza are heart-wrenching and difficult to bear.

"It's important to be informed, but don't stress yourself out," said Dr. Gary Small, chair of psychiat...

Dr. Olena Postuypalenko was caring for patients at Kyiv City Clinical Oncology Center on Feb. 24, 2022, when her mother called to ask what seemed like an odd question: Has Russia invaded Ukraine?

"My mom called me and said, 'There are explosions. Has the war begun?' And honestly, at that time, I didn't believe it. I didn't understand what had happened,"said Postuypalenko, who specializes ...

Even a "small" nuclear war, far short of a global conflict, could kill much of the world's population due to starvation, a new study projects.

Any nuclear war would have obviously devastating effects in the places where it was waged -- obliterating cities, instantly killing huge numbers of people, and contaminating local soil and water.

But the destruction would be expected to stret...

After 30 years, researchers believe they finally have definitive evidence of the primary cause of Gulf War syndrome: exposure to low levels of the nerve gas sarin.

Gulf War syndrome is blamed for leaving a quarter million veterans of the 1991 conflict with a disabling array of long-...

Nuclear war would trigger worldwide climate change and take a dire toll on food production and human health, according to scientists who studied different scenarios using a modern climate model.

"Although we suspected that ozone would be destroyed after nuclear war and that would result in enhanced ultraviolet light at the Earth's surface, if there was too much smoke, it would block out t...