
Their internet circles include the million-plus members of Reddit's "NoFap" community. There, you will find porn and masturbation blamed for everything from deficient penis size to low energy to lack of mental clarity. Above all, this self-pleasure is accused of causing erectile dysfunction, or the inability to sustain a satisfying erection.
A sort of cottage industry has sprouted around the idea of retaining semen and abstaining from masturbation and porn, despite a lack of evidence they work.