After years of mixed findings, a new meta-analysis may explain why vitamin D helps depression symptoms in some studies but not others: Like with medicine, dosage matters…

Most of us snack. That’s not inherently a problem, it’s actually an opportunity. Done right, you’re giving your body extra chances to take in the nutrients it genuinely needs more of. Here’s how to make the most of it…

Most people think of peppermint as a remedy for digestion. But a new study found the minty herb may also help lower blood pressure, especially when numbers are just starting to creep up. The catch? How you use it matters…

Serotonin may be best known as the brain’s “feel-good” chemical. But new research suggests it may also activate a hearing-related brain circuit that can turn up the volume on tinnitus — especially for some people taking medications that boost it…

An enlarged prostate and urinary symptoms are usually blamed on age. But high insulin may act like a growth-and-stress signal in the body — and the prostate appears to be one of the organs listening. That signals problems beyond plumbing…

Have you ever wondered why salt can worsen high blood pressure? Or why young people are less sensitive to salt’s effect on blood pressure? It comes down to slowed production of an anti-aging factor known as the Klotho protein…