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Because most mouths are too small for the 4 additional molars called wisdom teeth, these teeth usually must be removed. Here's how it's done.

Signs of an underactive thyroid gland (hypothyroidism) may be masked by pregnancy. But the thyroid is important for your baby's brain development. Learn if you should be screened for hypothyroidism.

Detailed information on treating aged or sun-damaged skin.

Smoking tops the list of risk factors for heart disease. Learn more about how smoking affects your heart, and get some helpful tips to quit smoking.

The structures of the eye include the cornea, iris, pupil, macula, retina, and the optic nerve.

Read on for helpful steps to take to prevent sports injuries.

What is a contusion? A sprain? A strain? Find out more about these common sports injuries.

It is important to remember that a lump or other changes in the breast, or an abnormal area on a mammogram, may be caused by cancer or by other, less serious problems.

Systemic lupus erythematosus (lupus) is a disease that causes your body's immune system to attack its own cells and tissues. It causes periods of inflammation to various parts of the body. It can affect your joints, tendons, and skin. It can affect blood vessels. And it can affect organs, such as the kidneys, heart, lungs, and brain.