Fitness basics
Learning Center
8 brain health tips for a healthier you
Follow these tips to protect your head and to stay active and engaged. Exercise, sleep, diet and social life are all important for a healthy brain.
Cold or allergy: Which is it?
Although colds and seasonal allergies share some of the same symptoms, they are very different diseases. Learn how to tell the difference.
Alzheimer's treatments: What's on the horizon?
Alzheimer's treatments now being studied include an Alzheimer's vaccine and several new medicines.
Progressive supranuclear palsy
Learn about this brain condition that affects your ability to walk, move your eyes, talk and eat.
Orthostatic hypotension (postural hypotension)
This form of low blood pressure might cause dizziness, lightheadedness or fainting when rising from sitting or lying down.
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.
Sick sinus syndrome
This heart rhythm disorder causes slow, paused or irregular heartbeats. Learn the symptoms and how it's treated.
Xylazine
Xylazine is a medicine used to sedate animals. Learn about possible risk of death in humans who take it.
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