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Myelodysplastic syndromes
Learn how medications and bone marrow transplants are used to control complications caused by these syndromes that affect the bone marrow.
Migraine
These painful, recurring headaches can last hours to days, often accompanied by nausea, vomiting, and sensitivity to light and sound.
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.
Male infertility
Male infertility often plays a role when couples have trouble conceiving. Find out what causes male infertility and available options for treatment.
Low sperm count
Having a low sperm count can make conceiving a child difficult, but not necessarily impossible. Learn about possible causes and treatment.
Long QT syndrome
Learn more about the causes and treatment of this heart rhythm condition that can potentially cause fast, chaotic heartbeats.
Insect bites and stings: First aid
How to administer first aid for insect bites or stings.
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.
Herbs and supplements: Can they enhance fertility?
There's no good evidence that so-called fertility herbs and supplements actually improve fertility.
Herbal supplements and heart medicines may not mix
Some herbal supplements can have dangerous interactions with heart medications.
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