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.

Losing those first pounds may feel impossible. No wonder those weight loss drugs, even with a growing list of side effects, are popular. But what if you could naturally regulate your appetite, without the risk or expense?

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.

Feeling drained after checking the news isn’t a sign of weakness. Your brain is wired to lock onto danger, and today’s nonstop headlines can keep your nervous system stuck on high alert. Here’s how to stay healthy while staying informed…

Does summer cause weight gain? The answer is yes, and the research is fairly consistent on this. So let’s talk about why it happens and how to avoid the trap…

Unlike green tea, matcha tea is made from whole, ground tea leaves. That means there’s no tea bag to discard, taking the antioxidant content through the roof. No wonder matcha has so many researched benefits, including this one…

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.

Prediabetes may sound like “not diabetes yet,” but your heart may not see it that way. There’s one blood sugar milestone that could change the story, cutting the risk of heart attack, stroke and other serious cardiovascular trouble nearly in half…

Think walking is enough for heart protection? A cardiologist explains why women who skip strength training may be missing out on an opportunity to lower heart attack risk by almost 45 percent…

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.