Hand grip strength. Balance tests. Standing up from a seated position on the floor. These physical challenges are often touted as measurements of healthy aging and even predictors of longevity.

Strength and mobility tests are often touted as measurements of healthy aging and even predictors of longevity, but they’re no crystal ball.

Strength and mobility tests are often touted as measurements of healthy aging and even predictors of longevity, but they’re no crystal ball