It depends on the age. If you are an adolescent- early 20s, it can make you have an erection more easily. If not, then it goes against you. But it also depends on how often you do it.
What people refuse to admit is that masterbating does make you weaker. Cortisol is released in huge amounts when you release. In fact, it is released in such huge amounts that you can physically feel the effects of it immediately. Cortisol breaks down muscles, reduces bone formation (osteoporosis), inhibits protein synthesis, transports potassium out of cells, reduces calcium absorption in the intestines, and inhibits collagen production.
People will tell you "it relieves stress so it must be healthy" and that's true, but aside from that there are very few benefits to cortisol.
Besides, I can't go working out right after I let one off. I usually feel tired and lazy.
Stupid ignorant society-screwing 'doctors'.........**** them trying to weaken everyone around them......