This article was first published on Sept. Testosterone is responsible for the development of secondary sex characteristics, features that stimulate male development including characteristics that are not part of the reproductive system, such as facial hair growth and voice change. Scientists have never satisfactorily explained men's curious breast fixation, but theorists are gonna theorize. The chart shows a typical sequence and normal range of development for the milestones of sexual development. Using illegal drugs such as anabolic steroids, marijuana, or heroin can also disrupt hormonal balance and lead to gynecomastia. For specific medical advice, diagnoses, and treatment, consult your doctor.
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Young responded that there are not enough studies looking at breast stimulation during foreplay across cultures to rule out the importance of the nipple-oxytocin bonding loop. Follicle-stimulating hormone plus testosterone causes the testes to produce sperm. Why do straight men devote so much headspace to those big, bulbous bags of fat drooping from women's chests? About 82 percent of women said the same. At puberty, the testes increase testosterone production. Blood helps stimulate sexual feelings. In a chapter in the book "Breastfeeding:
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New Theory on Why Men Love Breasts
Puberty is the stage during which people reach full reproductive ability and develop the adult features of their gender. This doesn't mean a guy is turning into a girl or anything. Anthropologist Owen Lovejoy argued that evolution put a bull's-eye around both female and male reproductive organs in order to promote pair bonding. We can learn to prefer long, pendulous breasts, or upright, hemispherical breasts. In a study of cultures, anthropologist Clellan Ford and ethologist Frank Beach reported that breasts were considered sexually important to men in 13 of those cultures. In the cultural view, men aren't so much biologically drawn to breasts as trained from an early age to find them erotic.
Description:However, sometimes guys produce enough estrogen during puberty that some breast tissue develops. Is This My Body? In girls, breast growth is caused by high levels of estrogen. This article was first published on Sept. This has nothing to do with puberty or hormones. Resources In This Article.