Elastic resistance
Learning Center
Yeast infection in men: How can I tell if I have one?
Yeast infections can occur in men, causing inflammation of the penis (balanitis). Learn what signs and symptoms could mean you have a yeast infection.
Withdrawal method (coitus interruptus)
The withdrawal method — pulling the penis out of the vagina before ejaculation — isn't the most effective birth control. Learn about the pros and cons.
Why isn't there a hepatitis C vaccine?
Hepatitis C vaccine development is far from straightforward, but experimental vaccines are under study.
When to brush your teeth
When should you brush your teeth? Learn how to protect your oral health.
What are superbugs and how can I protect myself from infection?
Some bacteria and other germs are resistant to most types of antibiotics and medicines that treat them. Find out the risks and how to prevent infections.
What are opioids and why are they dangerous?
Opioids are a broad group of medicines used to relieve pain. Although these medicines are effective, they can lead to addiction. Take them only as directed.
Video: Triceps kickback with resistance tubing
The triceps kickback targets the back of the upper arm. See how it's done.
Video: Standing hip abduction with resistance tubing
The standing hip abduction exercise targets the hip muscles. See how it's done.
Video: Squat with resistance tubing
The squat is an exercise that targets the leg muscles. See how it's done.
Video: Seated row with resistance tubing
The seated row targets the muscles in the upper back. See how it's done.