Fitness basics
Learning Center
Premenstrual syndrome (PMS)
Mood swings, cramps and irritability are just a few telltale clues that you're getting your period. Learn what you can do for PMS symptom relief.
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.
Toe walking in children
Walking on toes or the balls of the feet is fairly common in children who are learning to walk. Most children outgrow it.
Uterine polyps
Tissue growths inside the uterus can cause abnormal uterine bleeding or infertility. Learn about tests and treatment.
Mayo Clinic Minute: How to hit your target heart rate
Learn how to exercise at your target heart rate.
Premenstrual dysphoric disorder: Different from PMS?
Extreme moodiness, intense sadness or marked irritability in the days before your period — along with your usual PMS symptoms — could be PMDD.
HPV test
This test can help show the risk of cervical cancer. Learn more about how to prepare and what the results may mean.
Recurrent breast cancer
Learn about symptoms that alert doctors to a breast cancer recurrence and strategies for treating cancer that comes back after initial treatment.
Twin pregnancy: What twins or multiples mean for mom
Twin pregnancy or other multiples? Here's help taking care of yourself — and your babies.
Bioidentical hormones: Are they safer?
There's no evidence that bioidentical hormones are safer than standard hormone therapy for menopause.
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