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As food moves along the digestive tract, it is digested. This means it's changed into substances that can be absorbed into the bloodstream.

This surgery is done to treat diseases of the digestive tract. It takes out all of the large intestine. When healed, bowel movements still occur through the anus.

A pneumothorax occurs when air fills the space between your lung and chest wall. This can cause all or part of your lung to collapse. The main cause of a pneumothorax is an injury to the chest cavity that punctures the lungs.

Soft tissue may become trapped between the bones in a child's elbow joint (radial head subluxation). It often happens when a child is lifted or pulled by one arm.

Glare is the reflection off your screen that makes it hard to see the screen clearly. Glare can be caused by sunlight on your screen. Or it may be caused by indoor light, such as overhead and task lamps. Simple changes can help reduce glare and strain on your eyes. Adjusting your screen's contrast and brightness can also improve viewing comfort.

If you sit much of the day, your chair is your main support. A well-adjusted chair improves your circulation. It also helps prevent backaches and fatigue.

Tired eyes? Stiff neck? A few easy moves can help prevent these kinds of problems.

Tight shoulders? Aching back? A few easy moves can help your shoulders and back feel better.

These easy exercises can help relieve tension and soreness. Take a few minutes each day to do them right at your desk.