Magnetic resonance imaging (MRI) is a test that uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures inside the body. In many cases, MRI gives different information about structures in the body than can be seen with an X-ray, ultrasound, or computed tomography (CT) scan. MRI...

A computed tomography (CT) scan uses X-rays to make detailed pictures of structures inside of the body. During the test, you lie on a table that is attached to the CT scanner, which is a large doughnut-shaped machine. The CT scanner sends X-ray pulses through the body. Each pulse lasts less than a second and takes a...

Covers causes and symptoms of asthma in teens and adults. Includes info on avoiding triggers and treating attacks. Looks at treatment with controller medicine. Covers delivery systems that include metered-dose and dry powder inhalers and nebulizers.

Anesthesia is a way to control pain using anesthetic medicine. General anesthesia, which can be injected into a vein or inhaled, affects the entire body and makes the person unconscious. A person under general anesthesia is completely unaware of what is going on and does not feel pain during the surgery or procedure...

Cold and heat therapies are treatments that use cold or heat to help with pain, soreness, muscle spasms, swelling, and inflammation. There are different ways you can do cold and heat therapies. For example, you might use an ice pack for cold...

Hand-washing is more than just running water over your hands. Washing your hands with soap and water is one of the best ways to prevent the spread of infections. It helps prevent diseases, such as colds, flu, and food poisoning. It's easy. It doesn't cost much. And it works. When should you wash your hands? Wash your...

Includes tips to comfort a child before a medical test. Offers tips based on age, from newborns through the teen years.

Looks at depression in children and teens. Covers symptoms like anxiety, headaches, sleep problems, and lack of energy. Discusses treatment with therapy and medicines. Covers warning signs of suicide.

Ultrasound is a test that uses reflected sound waves to produce an image of organs and other structures in the body. It does not use X-rays or other types of possibly harmful radiation. For ultrasound testing, gel or oil is applied to the skin to help transmit the sound waves. A small, handheld instrument called a...

Local anesthesia is a method to deliver pain control medicine to a specific area. It can be injected or applied to the skin or mucous membranes to numb an area and its surrounding tissues. Local anesthesia does not make the person sleepy or relieve other pains. But it may be used along with other medicines that have...

What is alcohol use disorder? Alcohol use disorder means that a person drinks alcohol even though it causes harm to themselves or others. It can range from mild to severe. People with this disorder may find it hard to control their alcohol use. Over time, drinking too much alcohol may cause health problems, like liver...

Explains what breastfeeding is, benefits, how to plan for it, and how often to breastfeed. Includes step-by-step instructions. Covers common problems and when to call for help.

When you're dealing with everyday problems, stress, or health issues, it's important to have people in your life who can give you support. You may need a shoulder to cry on or someone to talk to. It's also important to have social support when...

Antibodies are proteins made by the body's natural defense system (immune system) to fight foreign substances, such as bacteria. Antibodies attach themselves to the foreign substance, allowing other immune system cells to attack and destroy the substance. The surfaces of viruses, fungi, and bacteria contain markers...

An allergic reaction is an overreaction of the immune system to a substance called an allergen. Allergens include chemicals, foods, medicines, mold, plants, and pollen. Symptoms of an allergic reaction can range from mild and annoying to severe and life-threatening. Allergens can affect different tissues in the body...

Includes causes and symptoms of heart disease. Looks at cholesterol, hypertension, and risk of heart attack. Covers diet, physical activity, and treatment with medicines, angioplasty, and bypass surgery. Includes how to help prevent heart disease.

Briefly discusses symptoms of seizures caused by epilepsy, other health problems, or medicine. Explains why seizures, or convulsions, occur. Offers interactive tool to help decide when to seek care. Also offers home treatment tips.

Discusses causes and symptoms of asthma in children. Looks at treatment with medicine such as inhaled corticosteroid and albuterol. Discusses avoiding triggers and treating attacks. Covers using nebulizers, metered-dose with spacer and dry powder inhalers.

Diabetes is a condition in which sugar (glucose) remains in the blood rather than entering the body's cells to be used for energy. This results in high blood sugar. Over time, high blood sugar can damage many body systems. Symptoms of diabetes include increased thirst and frequent urination (especially at night)...

What is an environmental illness? An environmental illness can occur when you are exposed to toxins or substances in the environment that make you sick. These health hazards may be found where you live, work, or play. Maybe you have headaches that only occur on weekends. Or maybe you began to feel sick and got a rash...

Covers birth control methods, including the pill, skin patch, Depo-Provera shot, condoms, cervical cap, and diaphragm. Provides questions to help you decide the right birth control method for you. Covers emergency contraception (the morning-after pill).

Briefly discusses common sexually transmitted infections. Offers interactive tool to help decide when to seek care.

Covers type 1 diabetes, also called juvenile diabetes or insulin-dependent diabetes. Describes how pancreas regulates blood sugar (glucose) levels. Includes info on hypoglycemia and hyperglycemia. Discusses treatments, including insulin.

X-rays are a form of radiation, like light or radio waves, that can be focused into a beam, much like a flashlight beam. Unlike a beam of light, though, X-rays can pass through most objects, including the human body. When X-rays strike a piece of photographic film, they can produce a picture. Dense tissues in the body...

Intellectual disability is a decreased ability to think and learn. It's caused by a problem with how the brain works. The diagnosis is based on intelligence quotient (IQ) tests and a child's learning problems. The disability can range from mild to severe. People who have intellectual disability may have a hard time...