Your muscles don’t necessarily have to act their age. In fact, much of what we think of as muscle aging may not be inevitable. Discover what staying active does inside muscle cells, and how key nutrients can support the energy that powers them.

From longer life, to better brain, liver and metabolic health, coffee’s reputation as a healthy beverage keeps getting stronger. Now researchers may have uncovered one of the cellular mechanisms behind its benefits, and caffeine appears to be far from the most important player.

While sleeping, your brain switches on a powerful anti-aging hormone that helps preserve muscle and bone, reduce fat and support a healthier metabolism. Scientists have uncovered the brain circuit behind it, and how to help keep it working as you age.

You watch what you eat and your cholesterol and blood pressure, all to protect your heart. What about the threat that could be lurking in your mouth, triggering inflammation and calcium buildup in your heart valves?

Oxygen may be the gas that keeps us alive, while carbon dioxide is the gas we exhale. But between the inhale and the exhale, CO₂ may help regulate blood flow through the brain and even provide the pulse needed to wash damaging proteins away.

Cancer is rising in adults under 55, and researchers are looking beneath the surface for answers. A surprising clue points to a hidden change inside some younger bodies that could reshape ideas about cancer and aging.

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.

Think summer sunshine is enough to rebuild your vitamin D stores? New research suggests that for many people the “sunshine vitamin” may stay low all year long. And that could matter more with every passing birthday.

You don’t need a gym, a trainer or a long workout to make sure your strength is there when you need it most. A simple four minute resistance routine helped older adults make gains in the everyday skills that matter for staying fit and independent.

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.

Have you ever wondered why salt can worsen high blood pressure? Or why young people are less sensitive to salt’s effect on blood pressure? It comes down to slowed production of an anti-aging factor known as the Klotho protein…

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.