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Expert Reactions

Fatherhood lowers testosterone – experts respond

John Kerr posted in on September 13th, 2011.

New research provides compelling evidence that human males are biologically wired to care for their offspring, showing for the first time that fatherhood lowers a man’s testosterone levels. US researchers led a study which followed a group of 624 young men in the Philippines, correlating their chances of finding a partner with their testosterone levels. […]

‘Sex-biases’ in the brain

Dacia Herbulock posted in on April 7th, 2009.

New Zealand researchers studying the complex interplay of sex hormones, behaviour and the brain have found new evidence for the role of hormones in influencing typical male and female behavioural traits. University of Otago neurobiologists Associate Professor Ian McLennan and Dr Kyoko Koishi’s findings are published today in the prestigious journal PNAS (Proceedings of the […]

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