Scientists create birth control pill for men (well, male mice)
Friday, August 17, 2012 - 12:30
in Health & Medicine
Ever wonder why there's no birth control pill for men? For starters, it's a math problem: To stop a woman from getting pregnant, all you have to do is block a single egg each month. But a man produces millions of sperm each day -- about 1,000 every time his heart beats. Blocking them all is a much bigger task.