I'm 45 and my test levels are fine. I haven't lost basically any mass or strength or libido since my 20's. I do take a lot of supplements, don't overtrain, and get enough sleep. I don't overdo alcohol or pot, Most people's test decline is often the result of cumulative lifestyle mistakes. Also excessive stress releases cortisol and that lowers test. Also prolonged, heavy steroid cycles will cause early declines in testosterone levels. I reccomend cycling anti-armotase supplements like 6-oxo, take high doses of Zinc, liquid Avena Sativa extracts, Eurycoma Longfolia extract. When the day comes where my hormones definitely decline, then I would consider HRT, but people in their 30's should not worry too much about test decline unless they're drinking over 5 drinks a day, not getting at least 7 hours sleep, smoking over a quarter ounce of weed a week and overtraining.
