LONDON — A new study has said that the reason behind, why we are constantly interested in s@x while most animals have periods when they come into heat, and outside these periods they do not find s@x interesting at all, is because s@x serves as a ‘glue’ in a committed relationship.
According to the findings that were published in the journal Evolution & Human Behavior, s@x is important for pair-bonding between men and women in relationships and not just mere waste of energy.
For the study researchers asked hundreds of Norwegian heterosexual women about contraception, sex and relationships.
And the results showed that of women in long-term relationships and who are using hormonal contraception, those who are more committed to their relationships have more sex with partners. “The function of s@x in humans outside ovulation is an evolutionary mystery.
But we believe that it has to do with binding the parties in the relationship together,” said Leif Edward Ottesen Kennair, Professor of psychology at Norwegian University of Science and Technology.
The researchers also found that commitment in relationship and the type of oral contraceptive women use are linked to how often couples have s@x. “But this association was especially true when the contraceptive that women used had potent levels of synthetic hormones that mimic the effects of the natural hormone progesterone, and lower levels of the hormone estrogen,” Steve Gangestad, Professor at University of New Mexico.