Youthful levels of dhea can do wonders for old guys and women too. You were obviously low since you have responded so well. Our levels usually start to fall about the age of 40 and keep falling until we die. However, some older people (especially women) can have high-normal or even hyper dhea levels as they age. Thus, we can't just assume we are low. I'm 63 and tested in range but low end. When I supplemented with dhea I started at 25mgs then 50 and all the way up to 100mgs and I failed to notice any improvement until I started Test-e. Glad to see you found the fountain of youth for yourself.