Jan 16, 2013 10:04 AM by Marissa Torres
A birth control for men? That could soon be a reality. Some of those "just for men" options include creams, injections, even implants.
Men make a thousand sperm a second. To be an effective contraceptive, sperm count has to go down to zero.
Concerns now are that testosterone could increase the risk of heart disease and prostate cancer. That's why Dr. John Amory is blocking vitamin A in the testes, which in turn blocks the development of sperm.
"I decided to explore ways of suppressing sperm without using hormones."
Tests in mice show it works 100 percent of the time, but some doctors are skeptical.
Researchers have also found a hormone free way to stop sperm production. They're using a drug treatment that targets proteins critical for the process.