Test prop works by making the muscles hold onto nitrogen, which means the muscles hold onto more protein. Holding onto proteins means better usage of energy, which subsequently means increase in muscle size and strength. Test prop has the ability to stop muscle wasting so you keep all of the muscle mass you worked hard at getting. There is no muscle wasting from the glucocorticoid hormones and red blood cell production is increased, which subsequently allows more oxygen to come in the body. Higher oxygen level in blood cells mean that you will not tire as fast and as much, what will than aid in recovery times as well.
I don't care what drugs people, to each their own, and I agree with allowing people the decision of what they want to do by weighing the pros and cons. With that said, you are comparing weed closely with cocaine. What the fuck? You have to be very misconceived about weed, even comparing it to alcohol, which a lot of people unfortunately do, is a pretty huge leap.
Just to clarify, the only harm weed will do to your body is if you combust it, it can cause smoker's cough and phlegm. It has never been proven to cause even cancer in your lungs. If eaten or vaped, marijuana has no proven harmful side effects (unless you consider increased appetite harmful). Studies show weed consumed daily over decades can even decrease the risk of cancer.
Sorry, just wanted to clarify that since you were trying to compare weed to cocaine, alcohol, and steroids.