Birth control basics
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Nighttime headaches: How can I get relief?
"Alarm clock" (hypnic) headaches wake people up. But other nighttime headaches also can disrupt sleep. Relief begins with determining the cause.
Sulfa allergy: Which medications should I avoid?
Sulfa allergy: A Mayo Clinic expert discusses which medications are likely to cause problems.
Nocturnal panic attacks: What causes them?
Nighttime panic attacks can cause sweating, rapid heart rate, trembling, shortness of breath, heavy breathing, flushing or chills. Learn about treatment.
Asthma and acid reflux: Are they linked?
A Mayo Clinic expert discusses how acid reflux can make asthma worse.
High-dose flu vaccines: How are they different from other flu vaccines?
High-dose flu vaccines are flu vaccines for older people.
Marijuana and depression: What's the link?
Marijuana and depression seem to go hand in hand for some people, but there's no clear evidence that marijuana directly causes depression.
Vitamin B-12 and depression: Are they related?
Low levels of vitamin B-12 and other B vitamins may be linked to depression, but more research is needed.
Stool color: When to worry
Stool color is usually a result of diet and is only rarely a concern.
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.
Triple X syndrome
Females with this genetic disorder have three X chromosomes instead of two. Symptoms can be mild or include developmental delays and learning disabilities.
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