Lower electric bills. Longer-lasting bulbs. Energy-saving lights sound like a win, but could we be paying with our health? Researchers are sounding an alarm about effects on healthy aging, metabolism, cellular energy, liver health and more.

Researchers restored a fundamental process inside severely damaged brains, and what happened next challenged assumptions about how permanent Alzheimer’s damage may be. The finding points toward an overlooked piece of the puzzle.

Most people know CoQ10 helps produce the energy your heart needs. What’s less well known is what it does for your arteries — a second job just as important. Here’s why CoQ10 can matter twice as much for your cardiovascular health.

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.

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.