You've got to breathe to live, but breathing polluted air could put you at risk of health problems.

As medicine evolves, the health care community must keep up with the newest ideas. For patients with diabetes, some recent changes may be important.

Taken with a heart medication, two hepatitis C drugs might pose some serious health risks.

Fentanyl, a powerful opioid drug often used to relieve pain for terminally ill patients, may have some much more dangerous uses.

Patients like to think medications will simply make them better, but often, side effect risks are involved. Some experts are expressing concerns that these risks are too great for a common cholesterol medication.

The cost of treating a chronic disease can add up, sometimes leading patients to hold off until the disease progresses. The most cost-effective way to treat a common liver condition, however, might be to face it head on.

Obesity in older people is often blamed on poor diet or reduced metabolism. However, diet sodas, a typical replacement for high-sugar drinks, may also be a culprit.

Many people exercise and eat healthily to improve their overall physical health, but those habits might also boost mental health.

Some people turn to medications like varenicline (brand name Chantix) to help quitting smoking. Chantix can be helpful, but it comes with a few warnings.

Just take a deep breath — unless the air is polluted, that is. Ultrafine particles in polluted air may be tied to heart disease.