The Ups and Downs of Fatherhood

Caring for a child can suppress testosterone levels in men.

By | September 13, 2011

STOCK.XCHING, SIMMBARB

While high levels of testosterone may give men a competitive edge when seeking a mate, low levels of the hormone can aid them in becoming caring and involved fathers. In a study published yesterday in the Proceedings of the National Academy of Sciences, researchers followed 600 young, single men in the Philippines over a period of 5 years and found that there was a significant drop in testosterone levels in the men that became first-time fathers.

“Fatherhood and the demands of having a newborn baby require many emotional, psychological and physical adjustments,” first author Lee T. Gettler told the Journal Sentinel. “Our study indicates that a man’s biology can change substantially to help meet those demands.”

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Comments

Avatar of: Michael

Anonymous

September 13, 2011

Or maybe they just didn't get enough sleep:



doi: 10.1001/jama.2011.710

Avatar of: Stuart21

Anonymous

September 13, 2011

Did they include DNA testing? Interesting to find if the effect was the same whether actually fathering (own child) or 'just thought' they were fathering. 
Or, if effect was diminished or absent in this case -

Avatar of:

Posts: 0

September 13, 2011

Did they include DNA testing? Interesting to find if the effect was the same whether actually fathering (own child) or 'just thought' they were fathering. 
Or, if effect was diminished or absent in this case -

Avatar of:

Posts: 0

September 13, 2011

Did they include DNA testing? Interesting to find if the effect was the same whether actually fathering (own child) or 'just thought' they were fathering. 
Or, if effect was diminished or absent in this case -

Avatar of:

Posts: 0

September 13, 2011

Or maybe they just didn't get enough sleep:



doi: 10.1001/jama.2011.710

Avatar of:

Posts: 0

September 13, 2011

Or maybe they just didn't get enough sleep:



doi: 10.1001/jama.2011.710

Avatar of:

Posts: 0

September 14, 2011

Interesting. But lack of sleep is just one important part of fathering, I guess..

Avatar of:

Posts: 0

September 14, 2011

Interesting. But lack of sleep is just one important part of fathering, I guess..

Avatar of: Siyuan Su

Anonymous

September 14, 2011

Interesting. But lack of sleep is just one important part of fathering, I guess..

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