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A bruise is a mark on your skin caused by blood trapped under the surface. It happens when an injury crushes small blood vessels but does not break the ...
What is bullying? Bullying is when a person or group repeatedly harms someone on purpose. It can be physical, social, and/or verbal. It is harmful to ...
A burn is damage to your body's tissues caused by heat, chemicals, electricity, sunlight, or radiation. Scalds from hot liquids and steam, building fires ...
A bursa is a small, fluid-filled sac that acts as a cushion between a bone and other moving parts, such as muscles, tendons, or skin. Bursitis occurs when ...
What is C. diff? C. diff is a bacterium that can cause diarrhea and more serious intestinal conditions such as colitis. You may see it called other names, ...
What is caffeine? Caffeine is a bitter substance that occurs naturally in more than 60 plants including: Coffee beans Tea leaves Kola nuts, which are ...
What is calcium and why do I need it? Calcium is a mineral, a nutrient that you need (in small amounts) to keep your body healthy. You have more calcium ...
Campylobacter infection is a common foodborne illness. You usually get it from eating contaminated food, especially raw or undercooked poultry. You can also get it ...
What is cancer? Cancer is not just one disease but many diseases. Cancer begins in your cells, which are the building blocks of your body. Usually, your ...
What are complementary and alternative therapies for cancer care? You have many choices to make about your cancer treatment. One choice you might consider ...
What is cancer chemotherapy? Cancer chemotherapy is a type of cancer treatment. It uses medicines to destroy cancer cells. Normally, the cells in your ...
What is immunotherapy? Immunotherapy is a cancer treatment that helps your immune system fight cancer. It is a type of biological therapy. Biological ...
Cancer is a group of related diseases. In all types of cancer, some of the body's cells begin to divide without stopping and spread into surrounding tissues. ...
Learning to live with cancer Cancer is a common disease. Many Americans will be diagnosed with cancer during their lifetimes. Even though cancer may be ...
Canker sores are small, round sores in your mouth. They can be on the inside of your cheek, under your tongue, or in the back of your throat. They usually have ...
Metabolism is the process your body uses to make energy from the food you eat. Food is made up of proteins, carbohydrates, and fats. Chemicals in your digestive ...
What are carbohydrates? Carbohydrates, or carbs, are sugar molecules. Along with proteins and fats, carbohydrates are one of three main nutrients found ...
Carbon monoxide (CO) is a gas that has no odor or color. But it is very dangerous. It can cause sudden illness and death. CO is found in combustion fumes, such ...
Carcinoid tumors are rare, slow-growing cancers. They usually start in the lining of the digestive tract or in the lungs. They grow slowly and don't produce symptoms ...
Cardiac rehabilitation (rehab) is a medically supervised program to help people who have: A heart attack Angioplasty or coronary artery bypass grafting for coronary ...
