carefully examine the impact of drug addiction on the emotional and physical spheres
drugs can hurt your body, depending on what drug you use it can effect your lungs, stomach, heart etc. It can effect you mentally and make you more aggressive towards family and friends.
Answer
It can also make you think things you wouldn't normally think if you weren't on that drug. Example : thinking that you're useless, wanting to hurt somebody for no reason, etc.
Hopefully this will help, Idk if you need to write an essay or something else, if you do need to write and essay I can try and find other resources, and you can use a paragraph i did for a different thing similar to this to help you.
You can also use this site to help you if my explanation wasn't enough.
Effects of Drug Addiction (physical and psychological)