Most people expect pain after surgery. But one common vitamin deficiency could make that pain worse — leaving patients in need of more opioid medication to get through recovery. That’s not surprising once you know this vitamin’s pain-relieving links…

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…

Chemotherapy is a standard tool used against breast cancer, but researchers are always looking for ways to help it work better. A small clinical trial points to an inexpensive vitamin that may help more women see a more “complete” response…

What if something you’re doing, or not doing, in midlife could shape your brain years from now? Researchers have uncovered a surprising link to a major Alzheimer’s marker. The findings may change how you think about long-term brain health.

Anyone who’s suffered a heart attack knows they have a 1 in 5 chance of another within 5 years. It’s not inevitable. Diet, exercise, managing stress and healthy habits can help. But cutting that risk in half just got easier…

Everywhere you go, someone is coughing or sneezing, spreading germs you might not be ready to handle. Strengthen your protection against respiratory infections now, not just to avoid getting sick, but to lower the risk of hospitalization if you do…