These 4 simple bodyweight tests reveal if your strength, mobility, balance, and core are keeping up after 40—plus how to ...

This test uses saliva and connects to your phone to deliver quick insights into your stress hormones -- no needles needed.

Discover the simple doctor-recommended balance test you can do at home to see how well your body is aging and how you can improve balance.

Weak glutes often play a role in common running injuries. The single-leg stance test shows you where your strength is lacking ...

The two-year test may bring the Navy - and perhaps the other services - closer to scientific consensus on the best way to measure body fat.

Do you struggle with body dysmorphia? Body dysmorphia is a type of obsessive-compulsive disorder in which someone becomes fixated on what they believe are major imperfections in their appearance and ...

The blood test that detects nicotine is called a cotinine test. It measures recent tobacco use and exposure. Cotinine is a chemical that comes from the breakdown of nicotine in the body. A blood test ...

Soldiers have a new incentive to get a high score on the service’s new Army Fitness Test. Those soldiers who score at least 465 are eligible to be exempt from the service’s body fat standards, Army ...