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Learn ways to recover from addiction to drugs and alcohol and how to prevent and deal with relapses.

Learn how a CPAP machine works and what different kinds of CPAPs are available.

Learn what to expect during a sleep study.

You stand the best chance of controlling your acne if you follow your treatment plan. Acne often takes months to improve, not days or weeks.

Skin cancer is a serious disease that can affect anyone. It's the most common form of cancer. If caught early, skin cancer can often be treated with success. But some cases are life-threatening. To be safe, do monthly skin checks. If you see any changes in your skin, contact your doctor right away.

A helpful, step-by-step guide to doing a monthly skin check and tracking any changes in your moles.

Vitamin C is also called ascorbic acid and ascorbate. This vitamin has many benefits. Vitamin C is an antioxidant. This means that it fights cell damage in the body. Damaged cells increase the risk of cancer and heart disease. Vitamin C may help you resist these diseases.

Learn about the drug addiction process in teens.

The middle ear is an air-filled chamber that lies behind the eardrum. Pressure in the middle ear changes to match air pressure outside of the eardrum. When inside and outside pressures are balanced, the eardrum is flexible and normal hearing is more likely. Problems happen when air pressure in the middle ear drops. This is often due to a block in the eustachian (u-STA-shun) tube, the narrow channel connecting the ear with the back of the throat.