Body weight exercises
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.
What is thirdhand smoke, and why is it a concern?
Tobacco smoke creates toxic residue that clings to walls, carpets, clothes and other surfaces.
Video: Step-up exercise
The step-up is an exercise for the legs and buttocks. See how it's done.
Video: Squat exercise
The squat is an exercise that targets the leg muscles. See how it's done.
Video: Modified pushup
The modified pushup is less challenging than a classic pushup. See how it's done.
Video: Lunge exercise
The lunge is an exercise that targets the leg muscles. See how it's done.
Video: Abdominal crunch
The abdominal crunch is a classic core-strength exercise. See how it's done.
Vasectomy reversal
Learn about this microsurgery procedure that can restore your fertility after a vasectomy.
Vasectomy
Find out more about this procedure that provides nearly 100 percent effective male birth control by cutting the supply of sperm to semen.
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