Editorials

For decades, researchers focused on one explanation for Alzheimer's. New science suggests the picture may be far more complicated — and more actionable.

Most people assume Alzheimer's is simply about plaques and tangles building up in the brain over time. But a growing wave of research is pointing to another culprit that scientists largely overlooked for years: chronic inflammation, and the surprising biological triggers behind it. Here's what the latest science says — and what it might mean for how you protect your brain starting today.

Your body may be harboring millions of dysfunctional cells that quietly drive inflammation, disease, and aging — and researchers are now finding ways to clear them out.

You've probably heard that aging is inevitable. But scientists are increasingly convinced that a big part of what makes us feel and look older isn't time itself — it's the buildup of something called senescent cells. These are sometimes called 'zombie cells,' and the research into clearing them out is one of the most exciting frontiers in longevity science today.

Decades of research keep pointing to the same kitchen staple as a powerful ally for a longer, healthier life.

You probably already have a bottle in your kitchen. But you may not realize just how much the science has stacked up in favor of olive oil — not as a trend, but as one of the most consistently studied foods linked to longer life and lower disease risk. Here is what the research actually shows.

Loneliness isn't just an emotional problem for men over 40—research suggests it can be as damaging to your body as smoking 15 cigarettes a day.

Most men don't talk about feeling lonely. But that silence may be costing them more than they realize. A growing body of research shows that social isolation is one of the most underestimated health risks facing men in midlife and beyond—and the consequences reach far beyond mood.

Elite athletes and longevity researchers swear by it — and you don't need to be fast to do it.

You've probably heard that you need to push hard to get real results from exercise. Sweat more, go faster, feel the burn. But a growing body of research suggests one of the most powerful things you can do for your long-term health looks nothing like that. It's called Zone 2 training, and it might be the most underrated workout you're not doing.

Forget the number on the scale — researchers say what's underneath may matter far more for how long and how well you live.

Most of us grew up thinking that staying healthy as we age meant watching our weight and keeping our cholesterol in check. But a growing body of research is pointing to a different, and perhaps more powerful, marker of longevity: how much muscle you carry. Here is what the science says — and what you can do about it starting today.

Wearable devices are doing more than counting steps — here's what the science actually says about their growing role in early health detection.

You probably think of your smartwatch as a fitness tracker. Something that nags you to stand up and logs your morning run. But researchers are finding it may be quietly doing something far more important — picking up on early warning signs of serious health conditions before you feel a single symptom.

Wearable glucose trackers are showing up on the arms of athletes, biohackers, and everyday adults who don't have diabetes — but are they actually worth it?

You don't have to have diabetes to strap on a continuous glucose monitor these days. CGMs — tiny sensors worn on the arm that track blood sugar in real time — have jumped from hospital settings to wellness culture at lightning speed. But before you add one to your cart, it's worth asking: what does the science actually say about using these devices if your blood sugar is already healthy?

A large Phase 3 trial suggests a once-daily pill could soon offer the same blood sugar control as a weekly injection — no needles required.

Most people assume that if a drug works, it probably comes in a pill. With GLP-1 medications, that hasn't been the case — until now. A major clinical trial just reported that an oral GLP-1 drug matched the blood sugar-lowering power of an injected competitor, and the results are turning heads in diabetes medicine.

The Mediterranean diet gets all the attention — but a Northern European eating pattern is quietly building a serious body of evidence for longer, healthier lives.

You've heard about the Mediterranean diet so many times it practically has its own publicist. But researchers and nutrition scientists are turning their eyes north — to Scandinavia — where a different way of eating is racking up impressive longevity credentials. The Nordic diet focuses on locally grown, seasonal foods from Denmark, Finland, Iceland, Norway, and Sweden, and the science linking it to better health outcomes is growing fast. Here's what the research says and what a Nordic plate actually looks like.

Machine learning tools are finding cancers, heart problems, and neurological conditions earlier than ever — and the science behind them is moving fast.

You go in for a routine scan or an annual checkup. Everything looks normal. But what if something was there that the human eye simply couldn't catch? Artificial intelligence is changing that equation — and in some cases, it's catching life-threatening conditions years before symptoms appear. Here is what the research actually says, and what it means for your health today.

For decades, butter was the villain. New research is complicating that story in surprising ways.

You were told to swap butter for margarine, choose skim milk over whole, and treat cheese like an occasional guilty pleasure. But a growing body of research is challenging those long-held dietary rules — and what scientists are finding about full-fat dairy and heart health may surprise you.

If you take blood pressure medication, you may have been told to go easy on bananas and other high-potassium foods. New research suggests that advice may need an update.

For years, people on certain blood pressure drugs have been quietly warned away from potassium-rich foods like bananas, avocados, and sweet potatoes. The concern made sense on paper — some medications raise potassium levels in the blood, and too much potassium can cause serious heart problems. But a new study suggests that for most patients, those worries may have been overstated. In fact, the research points to a surprising finding: eating a diet naturally high in potassium may actually be safe — and even beneficial — for many people on common blood pressure medications.

Your smartwatch counts your deep sleep stages every night—but how close is it to the truth?

Millions of people wake up, check their wrist, and let a number on a screen decide whether they had a good night's sleep. But sleep scientists have a few things to say about that. The technology is getting better—and it still has real limits worth understanding.

DIY lab kits promise a window into your health—here's what the science says about what they can and can't deliver.

You've probably seen the ads: a tiny finger prick, a prepaid envelope, and a full health report in your inbox within days. At-home health testing has exploded into a multi-billion-dollar industry, and the options keep growing. But before you order a kit, it helps to know what these tests actually measure, how reliable the results are, and when you still need a doctor in the loop.