Consumer health basics
Learning Center
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High blood pressure (hypertension)
Learn the symptoms and treatment of this condition — which raises your risk of heart attack and stroke — and the lifestyle changes that can lower the risk.
Long QT syndrome
Learn more about the causes and treatment of this heart rhythm condition that can potentially cause fast, chaotic heartbeats.
Low sperm count
Having a low sperm count can make conceiving a child difficult, but not necessarily impossible. Learn about possible causes and treatment.
Male infertility
Male infertility often plays a role when couples have trouble conceiving. Find out what causes male infertility and available options for treatment.
Medication overuse headaches
When medications that ease headache pain are used too often, these drugs can actually start causing headaches. Learn about prevention and treatment.
Migraine
These painful, recurring headaches can last hours to days, often accompanied by nausea, vomiting, and sensitivity to light and sound.
Myelodysplastic syndromes
Learn how medications and bone marrow transplants are used to control complications caused by these syndromes that affect the bone marrow.
Peanut allergy
Peanut allergy can be serious. Find out what you need to know to prevent a life-threatening reaction, and get the latest on treatment approaches.
Pulmonary embolism
Pulmonary embolism is often caused by blood clots that travel to the lungs from the legs. Prevention is aimed at stopping clots from forming in the legs.
Pulmonary hypertension
Learn more about the warning signs and treatment of high blood pressure in the lungs.