Teen health
Learning Center
Nausea and vomiting
Motion sickness and drinking alcohol are among the many common causes of nausea and vomiting. Serious diseases can also have this effect.
Multiple sclerosis: Can it cause seizures?
Seizures occur more often in people with multiple sclerosis than in the general population.
Mucus in stool: A concern?
Visible mucus in stool can have a variety of causes, but they're not always serious.
Ministroke vs. regular stroke: What's the difference?
The term "ministroke" typically refers to a transient ischemic attack.
Migraines and gastrointestinal problems: Is there a link?
Migraines can be associated with certain gastrointestinal problems. Learn more.
Mental illness in children: Know the signs
It can be hard to tell the difference between typical behavior and symptoms of mental illness in children. Find out what to look for and when to act.
Menstrual cycle: What's normal, what's not
Learn about how to track your menstrual cycles and what any changes may mean.
Memory loss: When to seek help
Memory loss may result from typical aging, a treatable condition or the onset of dementia.
Mayo Clinic Minute: Signs and symptoms of syphilis
Learn about the symptoms and stages of syphilis.
Mayo Clinic Minute: Fingernails are clues to your health
Learn six clues to identifying health conditions based on changes in your fingernails.
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