They've gotten a bad rap over the years due to some athletes using them illegally, but steroids can help treat a variety of health conditions. Learn more from WebMD about the different types and ...

Toothaches and jaw pain are common, but their sources can be very different. Learn more from WebMD about the causes, symptoms, diagnosis, and treatment of tooth pain.

Learn about the anatomy of the heart and how its chambers, valves, and vessels work together to maintain effective blood circulation throughout the body to sustain life.

An estimated 19 million American adults are living with major depression. Here you'll find in-depth depression information including symptoms, medications, and therapy.

Fasting: It’s simple and trending, though it’s been around for thousands of years. Find out from WebMD's slideshow whether it might be a good option for you and what the risks and benefits are.

Asthma is a difficult condition to diagnose, especially in children, and is often diagnosed after other conditions are ruled out. Learn more about the diagnostic process for asthma and the tests ...

Nine out of ten people who have systemic lupus erythematosus are women. Get in-depth lupus information including its causes, symptoms, and treatments.

Depression is common in older adults, but it isn't normal. WebMD explains the signs of depression in your aging loved one and different treatment options.

ADHD affects an estimated 3% to 5% of children and adults in the U.S. Get ADD and ADHD information here including its causes, diagnosis, and promising treatments.

Hoping to make your hair grow faster? Learn about hair-care tips, treatments, and tricks to nurture your hair and foster growth.

Alzheimer's disease affects an estimated 1 in 10 people over age 65. Find in-depth Alzheimer's information ...

In severe cases, a salicylate allergy can lead to anaphylaxis, which is a life-threatening reaction that is an emergency. But this is rare in the case of salicylate allergy.