I have a male friend who's under the age of 35, and he just made one of the biggest, long-term decisions of his life. He had a vasectomy. In his defense, he's married with three kids, so I understand why he'd be over the thought of having another baby. But you never know what life has in store for you. Plus, I just think 30 is young as hell to make such a permanent, lifelong decision.According to Wikipedia, during a vasectomy, "the male vas deferens are severed and then tied or sealed in a manner so as to prevent sperm from entering into the seminal stream (ejaculate) and thereby prevent fertilization."And though it can be reversed, your sperm count will be way lower than the count you had before the procedure. Well, thanks to scientists and technology, in the near future, men who don't want to have children, and don't want to go the serious route of getting a vasectomy, will have another option.