@ jwilson13 “Caffeine causes the penile helicine arteries and cavernous smooth muscle to relax, increasing penile blood flow, which is what motivated researchers to gather the data.” I had no idea!
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@ jwilson13 “Caffeine causes the penile helicine arteries and cavernous smooth muscle to relax, increasing penile blood flow, which is what motivated researchers to gather the data.” I had no idea!