Fitness basics
Learning Center
When cancer returns: How to cope with cancer recurrence
Learn what cancer recurrence means, and find out what you can do to cope when cancer returns.
Fitness program: 5 steps to get started
Starting a fitness program is easier than you might think. Follow these five steps.
Teens and social media use: What's the impact?
Find out how to help limit the negative impact of these popular apps on your teenager.
Post-traumatic stress: How can you help your loved one?
Use these tips to help someone cope with stress from a traumatic event, whether it's acute stress disorder (ASD) or post-traumatic stress disorder (PTSD).
Heart rate: What's normal?
A normal resting heart rate for adults ranges from 60 to 100 beats per minute. A heart rate above or below that may signal a problem.
Priapism
Understand the symptoms, possible causes and treatment of prolonged erection of the penis, including when to seek emergency care.
Male hypogonadism
This condition affects the ability of men's bodies to produce enough testosterone or enough sperm or both.
Retrograde ejaculation
Learn about the symptoms and treatment options for this condition that can cause male infertility.
Age spots (liver spots)
Learn more about the harmless dark spots on your skin that tend to appear as you age, especially in areas exposed to the sun. Treatment is available.
How fit are you? See how you measure up
Find your fitness level with these simple fitness tests.
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