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Testosterone and Sexual Behavior

Testosterone levels can increase significantly during sexual activity, with studies showing a 70% rise when engaging in sex compared to a modest 10% increase from merely observing it. Interestingly, while ejaculation raises prolactin levels, leading to a refractory period, abstaining from ejaculation for a week can boost testosterone by up to 400%. Understanding these dynamics is crucial for grasping how sexual behaviors influence hormonal levels and vice versa.