We all know the birth control pill alters the levels of hormones in your body, but did you know that the pill may actually alter how attracted you are to your partner?
A recent study published in the Proceedings of the National Academy of Sciences suggests that women who use oral contraceptives may change who they find good looking, or who they find most attractive.
The study looked at 70 heterosexual couples for one year and an additional 48 heterosexual couples during four years of marriage. The researchers asked the couples about their birth control use and their marital and sexual satisfaction. They also asked impartial judges to rate the attractiveness of the husbands’ faces based on photographs.
The researchers found that the women who started their relationships while on the pill became less satisfied with their relationship after they stopped taking it, but only if their husbands had scored low in attractiveness. In contrast, the women who married the men who were ranked higher in attractiveness were more satisfied in their relationships after they stopped oral contraceptives.
Although this information is interesting, and the researchers were able to control for many factors that might affect women’s marital satisfaction ( ie if she was pregnant or her husband’s satisfaction in the marriage) Study leader Michelle Russell still warns that the study’s design makes it hard to prove that the hormones were the direct cause of the change in satisfaction.
This research however, is similar to previously published results on hormonal pills and attraction.
We know that the type of man a woman is drawn to is known to change during her monthly cycle, when a woman is fertile, for instance, she might look for a man with more masculine features. Taking the pill or another type of hormonal contraceptive seems to change this natural dynamic, making less-masculine men seem more attractive, according to a small but growing body of evidence. The findings have led researchers to wonder about the implications for partner choice, relationship quality and even the health of the children produced by these partnerships.
Researchers have long been interested in factors that lead to people’s choice of mates. One influential study in the 1990s, dubbed the “T-shirt study”, asked women about their attraction to members of the opposite sex by smelling the men’s T-shirts. The findings showed that humans, like many other animals, transmit and recognize information pertinent to sexual attraction through chemical odors known as pheromones.
Studies have also shown that women seemed to prefer the scents of men whose immune systems were most different from the women’s own immune-system genes known as MHC. Scientists believe that children should be healthier if their parents’ MHC genes vary, because the offspring will be protected from more viruses and bacteria.
These natural preferences appear to be wiped out when the woman is on hormonal birth control, research has shown. Females on the pill no longer experience an increased desire for traditionally masculine men during ovulation. Their preference for partners who carry different immunities than they do also disappears. And men no longer exhibit changes in interest for women based on their menstrual cycle, possibly because those cues signaling ovulation are no longer present, scientists say.
All forms of birth control come with advantages and disadvantages, however if you are concerned about possible side effects of using hormonal contraceptives talk to your Medical or Naturopathic Doctor about other options for birth control.
Dr. Emily Lipinski