Health and fitness experts say a quick strength test that takes less than a minute may reveal surprising clues about aging, mobility, and long-term health.

Those morning stretches and at-home pilates might not be enough as one doctor shared an exercise that could determine your lifespan. NBC News medical contributor Dr. Natalie Azar shared with the TODAY ...

Failing a "sit-to-stand" or "sit-rise" test, which entails standing up from the floor with legs crossed, without using hands, arms, knees or side of the legs, means one has a higher likelihood of ...