Oh yeah that's true. I would'nt recommend anyone who's either still in the uncertain/questioning phase just run out and get on T or even anyone who thinks T is the magical elixir that will fix all their problems. Hormones are some of the most powerful substances in the body (and likewise some of the most powerful you can put in the body). There's so much range in what can happen, good and bad, wanted and unwanted. So far I've had the experience of seeing what unbalanced levels of every hormone can do to me personally. I can only stary so far from my own personal baseline before I feel like crap. But the only way I've learned this is through doctors giving me stuff I didn't really want or through my own doctor-guided experimentation.