About 2/10 percent of mammograms lead to a cancer diagnosis. About 10 percent of women examined will need another mammogram. Only about 10 percent of those women will need a biopsy. Out of those biopsies, 80 percent will come back negative for cancer..

But, what exactly, is gas? Most people produce between a pint and a half-gallon of gas each day. Oxygen, carbon dioxide and nitrogen from swallowed air make up a large part of gas, or “flatus.” Fermenting foods in the colon produce hydrogen and methane as well as carbon dioxide and oxygen.

The female breast is composed primarily of milk-producing glands (lobules), ducts that connect the glands to the nipple, and soft tissue. Breast cancer is a malignant tumor that has grown from breast cells. Nearly all breast cancers start in the ducts or lobules of the breast.

Bursitis is inflammation of a bursa, which is a small sac filled with fluid. We each have about 160 of these bursae, which act as shock absorbers and grease for our joints. They are buffers between bones and overlapping muscles or between bones and tendons/skin.

The size and location of the aneurysm determines the treatment method. For example, aneurysms in the upper chest are usually operated on immediately. Aneurysms in the lower chest and the area below your stomach are watched at first. If they grow too large or cause symptoms, surgery may be required.

Caffeine occurs naturally in many plants, including coffee beans, tea leaves and cocoa nuts. It is, therefore, found in a wide range of food products. Caffeine is added artificially to many others, including a variety of beverages. The most common sources of caffeine for Americans are coffee, tea, colas, chocolate and some over-the-counter medications.

There are a few steps you can take to preserve your hair: 1.) Avoid tight hairstyles that pull on the hair. So, forget braids, ponytails, cornrows and tight hair rollers. The pulling causes some hair loss, especially along the sides of the scalp. This type of hair loss is called traction alopecia.

In normal hearts, veins bring oxygenpoor blood from the body to the right side of the heart. It is then pumped through the pulmonary artery to the lungs, where it picks up oxygen. From there, the blood returns to the left side of the heart. Then it is pumped through a large artery called the aorta that distributes blood throughout the body.