Sleep
Learning Center
Male infertility
Male infertility often plays a role when couples have trouble conceiving. Find out what causes male infertility and available options for treatment.
Morning sickness
Learn more about nausea and vomiting during pregnancy. Learn about remedies that may help ease that queasy feeling.
Nearsightedness
Tired of squinting at objects in the distance? There are effective treatment options for this eye condition, and some preventive options are emerging.
Patent ductus arteriosus (PDA)
Learn about symptoms, causes and treatment of this common — and treatable — heart problem that occurs shortly after birth.
Phenylketonuria (PKU)
PKU is caused by a change in the gene that helps create an enzyme needed to break down phenylalanine. Treatment includes a special diet and medication.
Restless legs syndrome
Uncomfortable sensations in your legs can interrupt your sleep — making you drag through your day. These therapies calm the restlessness and improve sleep.
Shellfish allergy
It's possible to be allergic to some types of shellfish without reacting to other types. Learn more about this common food allergy.
Sleep apnea
Snoring loudly could be an indication of sleep apnea, a disorder in which breathing stops and starts repeatedly during sleep.
Epithelioid sarcoma
This rare, slow-growing soft tissue cancer tends to occur in teenagers and young adults. It often starts in a hand, wrist, arm or leg.
Can vaginal tears during childbirth be prevented?
Learn what you can do to help lower the risk of vaginal tears during childbirth.
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