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What is marijuana? Marijuana is a green, brown, or gray mix of dried, crumbled parts from the marijuana plant. The plant contains chemicals which act ...
What is a mastectomy? A mastectomy is surgery to remove part or all of the breast. It's usually done to treat breast cancer by removing the cancer. A ...
Measles is an infectious disease caused by a virus. It spreads easily from person to person. It causes a blotchy red rash. The rash often starts on the head ...
Medicaid is government health insurance that helps many low-income people in the United States to pay their medical bills. The Federal government sets up general ...
A medical device is any product used to diagnose, cure, or treat a condition, or to prevent disease. They range from small and simple, like a blood glucose ...
The field of ethics studies principles of right and wrong. There is hardly an area in medicine that doesn't have an ethical aspect. For example, there are ...
Medicare is the U.S. government's health insurance program for people age 65 or older. Some people under age 65 can qualify for Medicare, too. They include those ...
Medicines treat infectious diseases, prevent problems from chronic diseases, and ease pain. But medicines can also cause harmful reactions if not used correctly. ...
Medicines can treat diseases and improve your health. If you are like most people, you need to take medicine at some point in your life. You may need to take medicine ...
Children aren't just small adults. It is especially important to remember this when giving medicines to children. Giving a child the wrong dose or a medicine ...
Melanoma is the most serious type of skin cancer. Often the first sign of melanoma is a change in the size, shape, color, or feel of a mole. Most melanomas have ...
Every day, you have different experiences and you learn new things. Your brain cannot store all of that information, so it has to decide what is worth remembering. ...
Most men need to pay more attention to their health. Compared to women, men are more likely to: Smoke and drink Make unhealthy or risky choices Put off regular ...
Meniere's disease is a disorder of the inner ear. It can cause severe dizziness, a roaring sound in your ears called tinnitus, hearing loss that comes and goes ...
Meningitis is inflammation of the thin tissue that surrounds the brain and spinal cord, called the meninges. There are several types of meningitis. The most common ...
What is meningococcal disease? Meningococcal disease is the name for any illness that is caused by Neisseria meningitidis bacteria (also called meningococcal ...
What is menopause? Menopause is the time in your life when you stop having your period and can no longer get pregnant. You have reached menopause when ...
Menstruation, or period, is normal vaginal bleeding that occurs as part of a woman's monthly cycle. Every month, your body prepares for pregnancy. If no pregnancy ...
What are mental disorders? Mental disorders (or mental illnesses) are conditions that affect your thinking, feeling, mood, and behavior. They may happen ...
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 ...
