Body weight exercises
Learning Center
Video: Abdominal crunch
The abdominal crunch is a classic core-strength exercise. See how it's done.
Video: Modified pushup
The modified pushup is less challenging than a classic pushup. See how it's done.
Breast implants and cancer: Any connection?
Concerned about a link between breast implants and cancer? Get the facts.
Pregnancy and COVID-19: What are the risks?
Know how COVID-19 might affect pregnancy, labor and delivery, and breastfeeding. And get the facts about the safety of COVID-19 vaccines.
Keratoconus
When your cornea bulges outward, it can cause blurry vision and make your eyes sensitive to light. Find out about symptoms, causes and treatment for this eye condition.
Narcolepsy
Learn more about this sleep disorder that causes periods of involuntary sleep, sleep paralysis and early rapid eye movement (REM) sleep.
Birth control pill FAQ: Benefits, risks and choices
The birth control pill is surrounded by misinformation. Get the facts on common concerns and questions about taking the pill.
Repeat C-sections: Is there a limit?
Repeat C-sections are common — but each C-section is generally more complicated than the last.
Menopause and high blood pressure: What's the connection?
For many women, menopause and high blood pressure seem to go together. Discover why.
Falling during pregnancy: Reason to worry?
Here's what to consider after a fall during pregnancy, including when to seek medical help.
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