This group of inherited genetic conditions limits the adrenal glands' ability to make certain vital hormones.
Disease
Congenital heart disease in adults
A heart problem present at birth may not cause symptoms until adulthood. Learn how adult congenital heart disease is treated and what complications may occur.
Disease
Congenital mitral valve anomalies
These heart conditions present at birth cause the mitral valve to leak or become narrowed. Know the symptoms and treatment.
Disease
Coronary artery disease
Know the warning signs of this common heart condition often caused by clogged, narrowed arteries and how lifestyle changes can lower your risk.
Disease
Drug addiction (substance use disorder)
Drug addiction affects your brain and behavior to the point where you can't control your use of legal or illegal drugs, even when you know they cause harm.
Disease
Drug allergy
Learn which medicines are more likely to cause an allergic reaction, what symptoms look like and what treatments can calm such a reaction.
Disease
Dural arteriovenous fistulas
Learn about these rare, irregular connections that can occur between arteries and veins in the protective covering of the brain and spinal cord.
Disease
Dust mite allergy
This allergy can lead to year-round sniffles and sneezes. Here's how to find relief.
Disease
Ebstein anomaly
In this rare heart defect, the tricuspid heart valve didn't form properly. This can affect the heart's ability to pump blood. Know the risks and symptoms.
Disease
Egg allergy
This allergy can cause a serious reaction in children and adults. Learn the symptoms and what to do in case of a serious reaction.
Disease
Ehrlichiosis and anaplasmosis
Learn how to prevent and treat the tick-borne diseases ehrlichiosis and anaplasmosis.
Disease
Exercise-induced asthma
Regular exercise is good for you in many ways, but for some people, exercise can trigger breathing problems. Medicine can help.