Former NFL running back Chris Johnson revealed his ALS diagnosis on Monday. On Wednesday, he revived the "Ice Bucket ...

The boy's father jumped onto the alligator and tried to pry its mouth open, ultimately causing it to release his arm.

MSN via Barron Kerry Stewart, an exercise physiologist and professor of medicine at Johns Hopkins, says exercise capacity "definitely declines" as we age. "With regular exercise, the decline won't be ...