Sleep
Learning Center
Insomnia
This disorder can make it hard to fall asleep, hard to stay asleep or both, even though you have the chance for enough sleep. It can drain your energy.
Dementia
This group of symptoms with many causes affects memory, thinking and social abilities. Some symptoms may be reversible.
Paraneoplastic syndromes of the nervous system
This group of conditions affects people who have cancer and occurs when parts of the immune system attack parts of the nervous system.
Hot flashes
Hot flashes are the most common symptom of menopause. Learn about strategies for relief of hot flashes, including hormone therapy and natural remedies.
Lobular carcinoma in situ (LCIS)
If a breast biopsy reveals you have LCIS, your risk of breast cancer is increased. Learn how you can reduce your risk through medications and other strategies.
Menstrual cramps
Menstrual cramps — pain in the lower abdomen just before or during menstrual periods — can range from mild to severe. Learn about treatment options.
Dry macular degeneration
Blurred or reduced central vision could be a sign of macular degeneration. Find out about symptoms and treatment for this common eye disorder.
Canker sore
Canker sore — Learn about the causes, treatment and prevention of this painful mouth sore.
Spontaneous coronary artery dissection (SCAD)
A torn blood vessel in the heart can cause a heart attack. Learn about the diagnosis and treatment of this medical emergency.
Cataracts
Are things starting to look fuzzy or blurry? Find out about symptoms, diagnosis and treatment for this common eye condition.
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