Réponse :
1. Main reason : Bad for the body (especiallly for a kid whose body is still growing).
Health problems : Drugs can damage the brain, heart, and other important organs.
2. Social problems : People are less able to do well in a lot of activities (school, sports...). It's harder to think clearly and make good decisions. People can do dumb or dangerous things that could hurt them or other people.
Explications :
j'espère que j'ai pu t'aider.