About This Project
We are evaluating whether male fertility problems are under-diagnosed due to differences in sperm produced in the clinical setting versus during sex. Specifically, we are testing if the quality or quantity of a man’s sperm decreases as he becomes habituated to a particular partner. Evolutionary theory predicts this decrease as well as an increase in sperm measures when a man is “with” a new female, as when using pornography in a fertility clinic.
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