NOTE: Taking Cialis (or probably any of the erection-boosting PDE5 inhibitors) increases testosterone post-exercise in healthy male subjects.  So should you pop this pill before going to the gym? Well, not so fast: the study also showed that Cialis amplified cortisol significantly more than normal as well. The last thing most of us guys need is more cortisol, which leads to muscle tissue breakdown, visceral fat deposition and other ills. In addition, you should read the following links that cover The Dangers of Recreational Use of Viagra and Side Effects of Viagra, Cialis REFERENCES :
One caution that I have is that I tried for years to raise my testosterone through lifestyle changes, . diet, sleep, supplements, etc., and nothing budged my testosterone. And I see this quite often on The Peak Testosterone Forum : some men seem to have actual damage to some part of their HPT (hypothalamus, pituitary and testes) axis. In those cases, going natural just does not work for reasons that we do no understand yet. Of course, it does not hurt to try, and I especially encourage the younger men to do that.