Nothing new here. Caffeine is a PDE5 inhibitor but it's non selective and there is in fact a significant amount of research on this.
Coffee improves sexual function in men.
https://www.verywellhealth.com/caffeine-and-erectile-dysfunction-5199882
Nothing new here. Caffeine is a PDE5 inhibitor but it's non selective and there is in fact a significant amount of research on this.
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