I heard Dr. Drew say that there is no testosterone in sperm, but levels could fluctuate according to your lifestyle. For example, act aggressively and it will rise. I don't know how well this is supported by the evidence, but I'm believing it for now.I was wondering, does having sex elevate or lower test levels in men?
I remember hearing that people in jail have higher testosterone, and I wonder if the lifestyle theory was devised to prevent criminals from having a medical excuse, or maybe to prevent people from thinking that people of some races are born violent or with more testosterone as opposed to being influenced by their environment.
Don't know if sex is more like violence or nonviolence. I guess it depends on your style.