Sexual behavior is affected by a range of physiological functions related to specific hormones. Low levels of prolactin, specifically, have been associated with erectile dysfunction and physical ejaculation. (source)
The inability to maintain an erection or achieve ejaculation negatively affects sexual performance and reproductive potential. Maintaining these aspects of sexual function aids in both sexual pleasure and performance, and it supports reproductive potential.
Supplement with L-Carnitine: Carnitine has been shown to help reverse erectile dysfunction. (source) L-carnitine aids in reversing erectile dysfunction by improving endothelial and cavernous nerve function, reducing oxidative stress, and enhancing hormonal balance. (source, source, source, source) Recommendation: Supplement with at least 2 g of L-carnitine daily.
Supplement with Maca: Maca has been shown to improve sexual function. (source, source) Maca contains a compound that supports pathways that convert sex hormones to testosterone, which helps promote sexual function. (source) Recommendation: Supplement with at least 3 g of maca daily.