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Sleep aids: Could antihistamines help me sleep?
Antihistamines can be somewhat effective as a sleep aid — but only for occasional sleeplessness.
Sex after pregnancy: Set your own timeline
Thinking about sex after pregnancy? Follow these tips to heal and regain your passion.
Sepsis
Learn more about the symptoms and treatment of sepsis, a serious infection-related illness.
Seizures
Learn about the different types of seizures and what causes them. Also find out what to do if you see someone having a seizure.
Sciatica
Pressure on the sciatic nerve can cause pain and often numbness down a leg. Self-care measures might help.
Sacral dimple
Learn about the causes, complications and diagnosis of this indentation on the lower back present at birth in some babies.
Robotic hysterectomy
Robotic hysterectomy is a minimally invasive surgery to remove the uterus.
Rhabdomyosarcoma
This rare soft tissue cancer affects children more often than adults. Treatment may include surgery, chemotherapy and radiation therapy.
Rett syndrome
This rare genetic disorder affects the way the brain develops, causing a progressive inability to use muscles for eye and body movements and language.
Retrograde ejaculation
Learn about the symptoms and treatment options for this condition that can cause male infertility.
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