I ' m some kind of heathen without a YouTube accountYou ever use Google or Gmail ? Then you have a YouTube account . <| sep |> Too bad the series never gave her time to shine <| sep |> some other things helpful to sex drive BDNF , other growth factors . How does BDNF relate to libido ? PC muscle and bulbospongiosus tonesizestrength are also important factors . You can easily increase this with PC exercises . They are called Kegel exercises and the pubococcygeus PC muscle is the main target . The more space is taken up by those muscles , it seems the less blood flow it would require to cause any given level of arousal . Unless I ' m mistaken , strengthening the muscles . makes the muscles stronger not perform better by taking up more space and magically using less blood resources to actuate an even larger muscle right ?