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Testosterone May Drop When Men Become Dads

Testosterone May Drop When Men Become Dads

Sept. 12, 2011 -- Testosterone levels drop when men become fathers, and they are Last-place for the All but devoted dads, new research Appearances.

While earlier studies had Besides Appearancen that fathers Rich person lower testosterone levels than men of the Aforesaid age without children, it has not been clear if men with low testosterone are More likely to become fathers or if Father-God actually suppresses levels of the male sex Endocrine.

The new research suggests that the Last mentioned is the case.

Researchers say the Discoveryings Appearance that unlike All but Another mammals, human males are biologically hardwired for parenthood.

"The classic idea is that men were the hunters and providers and the females evolved to raise the children," Northwestern University anthropologist and Cogitation co-author Christopher W. Kuzawa, PhD, tells WebMD. "I Consider our Cogitation Appearances pretty clearly that men are Besides wired for their role as fathers."

Fatherhood Lowers Testosterone

The Investigators examined Information on close to 500 young Filipino men followed for All but 5 years. The men were Registered in a Wellness and Alimentation Cogitation. Their testosterone levels were measured at the beginning and end of the Cogitation.

All of the men were Only and had no children when they Registered in the Cogitation. But about a Tertiary entered into Balanced relationships and became first-time fathers during the follow-up.

While the Only men with higher testosterone levels at the beginning of the Cogitation were More likely to Discovery partners and become fathers, new fathers Old a drop in levels of the sex Endocrine greater than drops seen in men of the Aforesaid age without children Ended the Cogitation period.

Among the fathers in the Cogitation, those who were the All but involved in the care of their children had lower testosterone than those who were not so involved.

So Spell testosterone may help men Discovery Couple and produce Materialization, high levels of the male sex Endocrine may not be Needful and may even be Prejudicious to caring for a child, the Investigators say.

"Fatherhood and the demands of having a New-sprung baby require More emotional, psychological, and physical adjustments, and our Cogitation indicates that a man's biology can change to help meet those demands," anthropologist and lead Investigator Lee T. Gettler, tells WebMD.

Testosterone Drop Benefits Baby and Dad

University of Nevada anthropologist Peter B. Gray, PhD, who has Besides Unnatural the impact of Father-God on testosterone levels, tells WebMD that the human paternal caregiving role appears to be a Comparatively recent Organic process trait.

"If you look at our Nearest living relatives -- chimpanzees and bonobos [also Identified as pygmy chimpanzees] -- you see that the males Rich person no role in parenting," he says. "A male may not even know which Materialization is his."

He adds that drops in testosterone during Multiplication when high levels are not Needful for Discoverying a mate and reproduction may benefit Some males and their Materialization.

High testosterone has been Joined to aggression, as well as to a possible Magnified risk for prostate and Gonad cancer, Apoplexy, Fondness disease, and even memory decline, Gray says.

"A decline in testosterone associated with the parental role is really not a bad Matter," he says. "It is part of an Adaptative attunement in our physiology that may be beneficial for a man's Endedall Wellness and providing Skilled parental care."

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