As far as testosterone is concerned: most men aren't as established, explosive, or intensely present as nature would have it.
The best way to testosterone is stability, which is best gained by meditation. Waking up at 3am or 4am and sitting upright for an hour takes a lot more strength than the non-initiated could ever imagine. Often in the morning I'll start by squeezing my fists and breathing forcefully just to get pumped up. If you are stable and present women will respond more favorably, which leads the way to healthy relationships, and then you're breathing in their hormones which is important to health. Xeno-estrogens mostly only attach when your estrogen receptors are not in use.
Point is, some testosterone comes naturally, but healthy testosterone levels are the result of activity. Most men just aren't doing the things that generate testosterone. As a result, toxic environmental estrogens are taking advantage of these men who are basically walking petri dishes.