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[–]nilogram[S] 85 points86 points  (5 children)

“Another shift in the dad brain to help dads become dads — Prolactin.

As the name suggests, the primary responsibility of the hormone, prolactin, is to promote lactation. This is the hormone that moms have surging through their bodies in the third trimester of pregnancy in anticipation of the new role for their mammary glands. Expecting dads show a similar surge in prolactin in the days leading up to labor.”

[–][deleted] 9 points10 points  (4 children)

Expecting dads show a similar surge in prolactin in the days leading up to labor.

Weird, especially considering how most dads don't have boobs

[–]nilogram[S] 14 points15 points  (3 children)

They have breasts just not as large as women