To decrease the birth rate would require a big decrease in sexual activity. Here are the numbers: Researchers followed 881 couples through 7,017 menstrual cycles, with two stipulations for the volunteers: sex just once per month and no birth control of any sort. They found that on days outside the fertile window, conception occurred about 5 percent of the time, while during the fertile time around ovulation, the rate was 25 percent. Call the overall rate about 10 percent per unprotected intercourse. But protection with condoms or the pill or whatever brings the number way down—let’s say that rather than 10 percent, the rate with protection is 1 percent. That means to prevent one pregnancy an American would have to have sex 100 times less per year, just about a year’s worth of activity.
The end of summer marks the end of “baby season” in the United States, the months when most American babies are born. While the season is a time of celebration for millions here at home, it is a time of great danger for women in the developing world, where maternal mortality rates are staggeringly high. The World Health Organization conservatively estimated that in 2010, 287,000 women died during pregnancy and childbirth around the world. What makes this figure more unfortunate is that most of these deaths are preventable.
Women who consume at least one daily serving of whole milk are more than 50 percent less likely to experience ovulatory infertility than are women who consume less than one serving of whole milk per week.
Christine O’Donnell [may have] crusaded against masturbation in the mid-1990s, denouncing it as “toying” with the organs of procreation and generally undermining baby making, [but[ the facts are to the contrary. Evidence from elephants to rodents to humans shows that masturbating is—counterintuitively—an excellent way to make healthy babies, and lots of them.