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Knee osteoarthritis can turn ordinary activities into calculated risks. Climbing a flight of stairs, walking through a supermarket aisle, or standing up from a chair may trigger sharp pain. Prescription painkillers and anti-inflammatories can help, but th

Many of us drink coffee because it tastes good or helps us wake up - sometimes both. Epidemiologists have long noticed that regular coffee drinkers tend to have lower rates of liver disease, but the reason hasn't been clear. A new Cedars-Sinai study linke

Coffee is one of the most studied beverages in the world. Large population researches consistently link regular coffee drinking with lower mortality and a reduced risk of several chronic diseases. But the big question has been how a simple morning cup of

A beer after work or a couple of glasses of wine with dinner can feel routine. For years, that pattern of drinking even matched earlier U.S. guidance for men. But a new, wide-ranging analysis offers a sharper view: at intake levels many people still call

After a rough day, many of us automatically reach for our pets. We might scratch a dog behind the ears, snuggle up with a cat, or take the dog for a walk hoping the tension will ease. A new study finds spending time with a pet is linked to better day-to-d

Counting calories seems simple-until you do it at every meal, every day, for months. You watch portions, battle cravings, and mentally add every unplanned snack to your daily budget. For many people, that constant decision fatigue becomes harder to sustai

Macrophages are naturally well suited for cancer therapy. They can penetrate tumors, engulf malignant cells, and help recruit the rest of the immune system. But turning them into a practical, scalable treatment has been challenging. Mature macrophages are

Most people assume that following public health advice means they're doing everything they can for their bodies. A new perspective paper suggests that's the wrong way to look at it. Most official benchmarks-like the Recommended Dietary Allowance (RDA)-wer

Starting around age 30 or 40, the brain slowly loses volume: some regions shrink and tissue looks different on MRI scans. That's a normal part of aging. But for some people, their brains look older than their years would predict. To understand why, resear

The universe's most massive galaxies are inexplicably short on stars. Now, new observations point to a likely culprit: supermassive black holes at their centers aren't swallowing stars whole-they're blasting away the raw material needed to build them. Whe