A sporty great-grandmother attends Zumba classes at age 94 three times a week—and says she has no health issues at all.

Researchers are studying runner Jeannie Rice, who has “outstanding” fitness, to learn how we can stay healthy as we age.

TODAY, NBC’s Peter Alexander runs through the Highs of the week including a 100-year-old woman holding an impressive three minute plank in her aerobics class, a woman who discovered that her dog will ...

Walking 10,000 steps a day is great—but what happens if you do those steps while wearing a weighted vest? We reveal the surprising results!