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What is hepatitis C? Hepatitis is inflammation of the liver. Inflammation is swelling that happens when tissues of the body are injured or infected. Inflammation ...
A hernia happens when part of an internal organ or tissue bulges through a weak area of muscle. Most hernias are in the abdomen. There are several types ...
What is heroin? Heroin is an illegal, very addictive opioid drug. It's made from morphine, which comes from the seedpod of opium poppy plants. These plants ...
A hiatal hernia is a condition in which the upper part of your stomach bulges through an opening in your diaphragm. Your diaphragm is the thin muscle that ...
What are hiccups? Have you ever wondered what is happening when you hiccup? There are two parts to a hiccup. The first is an involuntary movement of your ...
What is hidradenitis suppurativa (HS)? Hidradenitis suppurativa (HS) is a chronic skin disease. Another name for it is acne inversa. It causes painful, ...
What is blood pressure? Blood pressure is the force of your blood pushing against the walls of your arteries. Each time your heart beats, it pumps blood ...
What is high blood pressure in pregnancy? Blood pressure is the force of your blood pushing against the walls of your arteries. Your arteries are blood ...
What is cholesterol? Cholesterol is a waxy, fat-like substance that's found in all the cells in the body. The liver makes cholesterol, and it is also ...
Your hip is the joint where your femur (thigh bone) meets your pelvis (hip bone). There are two main parts: a ball at the end of the femur, which fits in a ...
What is histoplasmosis? Histoplasmosis is an infection caused by a fungus called Histoplasma. This fungus is common in the central and eastern United ...
What is HIV? HIV stands for human immunodeficiency virus. HIV harms your immune system by destroying a type of white blood cell that helps your body fight ...
If you are pregnant or planning to get pregnant, it's important to get tested for HIV as soon as possible. If you find out that do have HIV, you can start ...
What is HIV? HIV stands for human immunodeficiency virus. It harms your immune system by destroying CD4 cells. These are a type of white blood cells that ...
What are PrEP and PEP? PrEP and PEP are medicines to prevent HIV. Each type is used in a different situation: PrEP stands for pre-exposure prophylaxis. ...
What is Hodgkin lymphoma? Hodgkin lymphoma, also called Hodgkin disease, is a type of cancer that develops in the lymph system. Your lymph system is part ...
Hospice care is end-of-life care. A team of health care professionals and volunteers provides it. They give medical, psychological, and spiritual support. The ...
Regular exercise is one of the best things you can do for your health. It has many benefits. It can improve your overall health and fitness and reduce your risk ...
What is mental health? Mental health includes our emotional, psychological, and social well-being. It affects how we think, feel, and act as we cope with ...
What is cholesterol? Cholesterol is a waxy, fat-like substance that that's found in all the cells in your body. Your body needs some cholesterol to work ...
