Dads-To-Be May Experience Hormone Changes Before Their Babies Are Born, Study Shows

Yes, women are the ones who actually experience the physical act of being pregnant and the hormone changes that come with it. But a new study suggests that expecting fathers go through their own share of hormonal shifts as the due date approaches.

The study, published in the American Journal of Human Biology on Dec. 15, was the first to look at how men’s hormones change along with the mother’s while she’s still pregnant. Researchers found that, during this prenatal period, first-time dads showed significant declines in testosterone and estradiol, a hormone associated with caregiving and bonding. Since previous studies have shown that fathers in general have lower testosterone levels than non-fathers, this hormone shift during pregnancy could be biology’s way of preparing men to become dads, according to the new study.

Researchers tested the hormone levels of 29 first-time expecting couples at the twelfth week of pregnancy and then again every eight weeks until the birth. As expected, women showed large prenatal increases in testosterone, cortisol, estradiol, and progesterone. While the men experienced less of a hormonal shift in general, they did show that aforementioned drop in testosterone and estradiol.

“Having lower testosterone is good if —> Read More Here


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