Joyce Turner

Sleep Disorders vary in nature and degree. The three major sleep disorders are dyssomnias (insomnia), hypersomnia (disorders of excessive sleepiness) and parasomnias (abnormal behaviors during sleep).

Knowing the signs and symptoms of breast cancer may help save your life. When the disease is discovered early, you have more treatment options and a better chance for a cure. Most breast lumps aren't cancerous. Yet the most common sign of breast cancer for both men and women is a lump or thickening in the breast. Often, the lump is painless.

The breasts sit on the chest muscles that cover the ribs. Each breast is made of 15 to 20 lobes. Lobes contain many smaller lobules. Lobules contain groups of tiny glands that can produce milk. Milk flows from the lobules through thin tubes called ducts to the nipple.