Scientists are learning how muscles in motion can improve cognition and shield against diseases like Alzheimer's, paving the ...

Wildlife experts and advocates say you can’t put a price on Yellowstone’s famous grizzly bears because they’re “priceless.” ...

After starting with modest goals, David Aspinall lost weight, improved his mental health, and will run America's most famous distance race.

New research from Australia overturns the old idea that exercise “uses up” heartbeats. It shows that fitter people actually use fewer total heartbeats each day thanks to their lower resting heart ...