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Your liver is the largest organ inside your body. It helps your body digest food, store energy, and remove poisons. You cannot live without a liver that works. ...
What are HIV and AIDS? HIV stands for human immunodeficiency virus. It harms your immune system by destroying a type of white blood cell that helps your ...
You've probably heard that high blood pressure is a problem. Sometimes blood pressure that is too low can also cause problems. Blood pressure is the force ...
What is lung cancer? Lung cancer is cancer that forms in tissues of the lung, usually in the cells that line the air passages. It is the leading cause ...
When you breathe, your lungs take in oxygen from the air and deliver it to the bloodstream. The cells in your body need oxygen to work and grow. During a ...
A lung transplant removes a person's diseased lung and replaces it with a healthy one. The healthy lung comes from a donor who has died. Some people get ...
What is lupus? Lupus is a chronic (long-lasting) type of autoimmune disease.Autoimmune diseases happen when your immune system attacks healthy cells and ...
What is Lyme disease? Lyme disease is a bacterial infection you get from the bite of an infected tick. At first, Lyme disease usually causes symptoms ...
The lymphatic system is a network of tissues and organs. It is made up of: Lymph - a fluid that contains white blood cells that defend against germs Lymph ...
Lymphedema is the name of a type of swelling. It happens when lymph builds up in your body's soft tissues. Lymph is a fluid that contains white blood cells that ...
Lymphoma is a cancer of a part of the immune system called the lymph system. There are many types of lymphoma. One type is Hodgkin disease. The rest are called ...
Macular degeneration, or age-related macular degeneration (AMD), is a leading cause of vision loss in Americans 60 and older. It is a disease that destroys your ...
Your small intestine does most of the digesting of the foods you eat. If you have a malabsorption syndrome, your small intestine cannot absorb nutrients from ...
Malaria is a serious disease caused by a parasite. You get it when an infected mosquito bites you. Malaria is a major cause of death worldwide, but it is almost ...
Although breast cancer is much more common in women, men can get it too. It happens most often to men between the ages of 60 and 70. Breast lumps usually aren' ...
Infertility is a term doctors use if a man hasn't been able to get a woman pregnant after at least one year of trying. Causes of male infertility include: Physical ...
Food provides the energy and nutrients you need to be healthy. If you don't get enough nutrients -- including proteins, carbohydrates, fats, vitamins, and minerals - ...
What is a mammogram? A mammogram is an x-ray picture of the breast. Health care providers use mammograms to look for early signs of breast cancer. There ...
Managed care plans are a type of health insurance. They have contracts with health care providers and medical facilities to provide care for members at reduced ...
Marfan syndrome is a disorder that affects connective tissue. Connective tissues are proteins that support skin, bones, blood vessels, and other organs. One ...
