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…

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…

You may not drink every day, or even every week. Or maybe you do. But there’s the occasional special weekend when you have a few. Is that a problem? If you have certain metabolic risk factors, it could be — especially for your liver.

Summer sun can do a number on your skin. But new research suggests one juicy fruit may help support your skin’s natural defenses from the inside out — by influencing genes tied to the skin barrier and oxidative stress.

Statins are prescribed to lower cholesterol. But, they come with a laundry list of side effects, including a higher risk of dementia, kidney damage and muscle pain. Now we’re finding some statins increase the risk of diabetes and cataracts…

Air pollution particles may do more than irritate your lungs, they may affect your brain. If you’re 40+, a simple home appliance that cleans your air may also rev up your brain. Here’s what the study found and how to put cleaner air to work for a healthier brain as you age.

New research suggests the kind of fat you eat may matter more than the amount when it comes to insulin resistance. Here’s why one common fatty acid may worsen blood sugar control — and another may help protect it.

What if some of the healthiest foods on your plate were carrying something your body doesn’t need? Researchers studying nonsmokers, under 50, with lung cancer found a pattern that surprised even them. And the explanation is hiding in plain sight.

One food at the forefront of brain health is olive oil. But a recent discovery found that not all olive oils are equal. In fact, choosing the wrong kind could put your brain on the fast track to cognitive decline…

Walking comes naturally easy to us as adults. But the way we walk tends to vary from person to person. That’s no big deal unless it’s a difference that signals one of these 12 hidden health problems tipped off by how you walk…

There’s a reason some blood pressure stays stubbornly high, and it may not be what you think. A little-known hormone could be part of the picture, and your doctor likely isn’t even testing for it…

A common food found in many American kitchens is linked to colon cancer, but nearly half of Americans don’t know the risk. A new report highlights this surprising gap in awareness and what it could mean for your long-term health.