The health effects of vitamin D has been a popular topic of research in recent years. Now, a new study suggests that low vitamin D levels may be a warning sign for one form of cancer.

It may seem harmless to pop a multivitamin each day, but many dietary supplements still contain active ingredients that affect the body. They might also interact with prescription medications.

Antibiotic resistance has been getting more and more attention in this country as more experts warn against it. Now, a major report has examined the problem on a worldwide scale.

A person's weight may influence how accurate various medical tests are. When the test is looking for whether breast cancer has spread, it's important to know if weight makes a difference.

HPV is perhaps most notorious for its link to cervical cancer, but it can also contribute to some kinds of oral cancer. A new study explored the spread of these conditions among partners.

Statins, the popular cholesterol-lowering medications, may be lulling people into a false sense of security. Statin users seem to be less concerned about overeating and gaining weight.

There are two main ways to treat mental illness: medication and therapy. Often, these are combined, but other times patients choose one or another. Which is best?