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Wearables have gotten smarter, but sleep science is complicated. Here's what your device can and can't tell you about your night.
You woke up exhausted, but your smartwatch says you crushed it — eight hours, plenty of deep sleep, high sleep score. So who's right, you or the wristband? It turns out the answer is more nuanced than the app wants you to believe.
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A new experimental injection showed a 12% reduction in dangerous organ fat in early-stage trials — here's what the research actually means.
Most people think of body fat as the kind you can pinch. But the fat wrapped around your internal organs — called visceral fat — is a different story. Early trial results on a new injectable therapy suggest it may be possible to target that deep fat directly. Here's what the science actually shows, and what it doesn't.
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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.
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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?
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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.
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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.
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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.
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