The Army spent years trying to build a fitness test that ignored gender, only to discover that biology, politics, and combat readiness refuse to fit neatly on the same scorecard.

Certain PT test exercises fill the upper-body muscles with blood, making a run afterward more challenging than running fresh.

The test has been reinstated after being canceled in 2013 ...

New genetic-testing kits promise to uncover your ideal workout and nutritional quirks—even whether you’re prone to injuries. All they need is a little spit. We are living in the golden age of fitness ...