While labels on over-the-counter (OTC) erection pills and products may hint they are just like Viagra (sildenafil) or another erectile dysfunction (ED) drug, their benefits remain largely unproven.

The 47-year-old millionaire tech mogul posted screenshots showing data from an overnight erection-tracking machine for both himself and his 19-year-old son, Talmage.

Erectile dysfunction is the inability to get and maintain an erection. Occasional trouble with ED is likely nothing to worry about. Decreased blood flow, usually because vessels that supply blood ...