Aerobic exercise
Learning Center
Exercise intensity: How to measure it
To get the most out of exercising, aim for moderate to vigorous exercise intensity. See how to judge your exercise intensity.
Exercising with osteoporosis: Stay active the safe way
Osteoporosis weakens your bones, but you can still exercise — in fact, you should.
Female fertility: Why lifestyle choices count
Know what you can do to protect being able to get pregnant.
Fetal development: The 1st trimester
Fetal development begins before you even know you're pregnant. Here's what happens early on.
Fetal development: The 2nd trimester
Fetal development progresses rapidly in the second trimester. Check out the weekly changes.
Fetal development: The 3rd trimester
Fetal development continues as your due date approaches. The countdown is on!
Fetal ultrasound
Look at ultrasound images and learn how to understand what you're seeing.
Genetic testing for breast cancer: Psychological and social impact
Prepare for your hereditary cancer gene test by learning how genetic testing for breast cancer may affect you and your family members.
Get walking with this 12-week walking schedule
Do you want the health benefits of aerobic exercise but need help getting started? Try this easy 12-week walking plan.
Great expectations: How to keep them from creating unhappiness
Expectations are a part of life. But if dashed hopes are getting you down again and again, here's what to do about it.
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