Gen X women can expect longer lives than their mothers. But living those extra years in good health comes with a hefty price.

At 55, 30–40 smooth jumping jacks without stopping—and passing the talk test—signals above-average cardiovascular fitness.

“Strength training increases muscle mass, which in turn improves how the body uses insulin and helps move glucose out of the blood and into cells for energy,” says Lettenberger. “This can lower blood ...

Sometimes, it also helps to operate on autopilot: I’ll set out my running gear on my bedroom floor the night before, and I don’t allow myself to think much when I get up. That way, I’m not allowing ...

More men are now living long enough to develop osteoporosis. But few are aware of the risk, and fewer still are screened and treated.