Your blood sugar can look normal while insulin is working overtime behind the scenes. Now researchers are proposing a simple finger-prick measurement that may reveal the metabolic conditions linked to cancer and chronic disease before the warning signs become obvious.

Exercise does more than help build muscle. It could reverse a key driver of muscle aging by helping older muscle cells restore the cleanup-and-repair systems they need to stay strong, responsive and ready for the life you want to keep living.

Protein after 50 isn’t just about preserving muscle. Leucine, a key amino acid found in protein-rich foods, may also help support the mitochondria that power your cells, making it part of a bigger strategy for cellular energy and healthy aging.

Most people don’t think twice about using disinfectant sprays, but new research suggests what you breathe in while cleaning could be more harmful than if you swallowed it…

Your immune system can get tired with age, but what if aging immune cells could act young again? Researchers are studying a compound that may help T cells renew their power source. And your gut may be able to make it from foods you already know.

Physical therapy after a stroke is common to help survivors regain their abilities. But there’s another good reason to use exercise after stroke recovery: the potential to send mitochondria to the brain to support the healing process…