Exercise appears to spark a whole-body anti-aging cascade, and scientists have now mapped out how it happens—and how a simple oral compound can mimic it. By following volunteers through rest, intense ...

Cannabis drug tests measure tetrahydrocannabinol (THC) and its metabolites, which can stay in your body long after the “high” fades. Detection ranges from hours in blood or saliva to weeks or months ...

Water weight, also called edema, can cause day-to-day weight fluctuations. It often temporary, but swollen ankles, feet, or legs may signal a problem. Some ways to help reduce water weight include ...