Faut-il s'en inquiéter ou se réjouir? Les auteurs de l'étude croient que les résultats font ressortir l'importance de l'implication du père!
"Testosterone, that most male of hormones, takes a dive after a man becomes a parent. And the more he gets involved in caring for his children — changing diapers, jiggling the boy or girl on his knee, reading “Goodnight Moon” for the umpteenth time — the lower his testosterone drops.
So says the first large study measuring testosterone in men when they were single and childless and several years after they had children. Experts say the research has implications for understanding the biology of fatherhood, hormone roles in men and even health issues like prostate cancer.
“The real take-home message,” said Peter Ellison, a professor of human evolutionary biology at Harvard who was not involved in the study, is that “male parental care is important. It’s important enough that it’s actually shaped the physiology of men.”
“Unfortunately,” Dr. Ellison added, “I think American males have been brainwashed” to believe lower testosterone means that “maybe you’re a wimp, that it’s because you’re not really a man.
“My hope would be that this kind of research has an impact on the American male. It would make them realize that we’re meant to be active fathers and participate in the care of our offspring.”
The study, experts say, suggests that men’s bodies evolved hormonal systems that helped them commit to their families once children were born. It also suggests that men’s behavior can affect hormonal signals their bodies send, not just that hormones influence behavior. And, experts say, it underscores that mothers were meant to have child care help.
“This is part of the guy being invested in the marriage,” said Carol Worthman, an anthropologist at Emory University who also was not involved in the study. Lower testosterone, she said, is the father’s way of saying, “ ‘I’m here, I’m not looking around, I’m really toning things down so I can have good relationships.’ What’s great about this study is it lays it on the table that more is not always better. Faster, bigger, stronger — no, not always.”"
Lien pour l'article du NY Times:
http://www.nytimes.com/2011/09/13/health/research/13testosterone.html?nl=todaysheadlines&emc=tha23
Lien pour le site de l'étude:
http://www.pnas.org/content/early/2011/09/02/1105403108
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