For foods u can put fruits, vegetables,meat,protein,carbs
They all combine and take part in making your overall health better.
There are obviously A LOT of them. Like how your brain is slowly deteriorating, which is scary and dangerous. I can't cover everything but I have a website link you could visit that talks about this subject
https://www.drugabuse.gov/publications/research-reports/heroin/what-are-long-term-effects-heroin-use
Cluster Suicides, so the answer is D
