If you said decreases the neurotransmitters. There could be a possibility that, with my physical condition in my brain has been so damage by my disorder etc. that it maybe possible that it can damage people in my circumstance. I used to rip bongs like that and drag sooo hard on weed all the time for 3 years. I just can't explain how that happened. Everyone says it's laced or it's not weed which is stupid, because I agree on it being laced possibly, but I inspected it myself and my friend smoked it b4 me and it was fine she smoke a bit more than I did. Nothing happened, but when I smoked it people found my partially dead body. I don't care to get in the weed is bad or good war. I just want to say that it happened to only me. So I can't smoke it anymore. Plus I don't care if anyone else does I hope weed is more available in the future and people do studies on specific people who can't smoke weed for already born brain problems. Not all neuro people with problems or stroke patients can and can't smoke, but I do say. I am an exception which is unfortunate, because I really loved it.