development

  • Women Really Don’t Notice Details About Your Penis

    Women Really Don’t Notice Details About Your Penis

    We’ve seen it in study after study: men worry about what their penis looks like. Is it too short? Too long? Too thin? Is the glans too fat? Will that birthmark be a deal breaker? Relax. A study published in the Journal of Sexual Medicine last month suggests that women don’t really notice those details.


  • Here’s How Men Make 200 Million Sperm Every Day

    Here’s How Men Make 200 Million Sperm Every Day

    Human testes are masters of mass production, spitting out sperm at a rate of 200 million per day. But that doesn’t mean the process is fast — it takes 64 days to make a sperm. The organ keeps the count high with an assembly-line anatomy that scales up sperm development from a trickle to a…