Im guesting there all equally as bad. That is if you do different doses to get to the same effect. But it is interesting, why is exercising with a heart rate of 180 considered good exercise, while these drugs are considered very bad for you heart. But if you exercised regularly and were in shape, why would you not be able to tolerate it better than a lazy man? My dad died at 54 from a heart attack, he used powder coke occasionally. Im not sure if he was using when he died, but did have hight blood pressure. I use adderall for AHAD, yea I like buzz, some pills and some coffee get me moving in the right direction.I just wondering if I am taking years off of my live.