It’s worth mentioning here that while women’s brains are wired to respond to estrogen’s activation, men’s brains are similarly calibrated for testosterone. This is important, as the quantity and longevity of each sex’s activator hormone differ, and testosterone doesn’t generally run out until late in life. This more gradual tapering-off process leads to andropause, the male equivalent of menopause. However, as the tabloids remind us, most men remain fertile until their seventies—which in a nutshell means that the testosterone receptors in men’s brains have more time to adjust. Women’s brains,
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