That's not the only problem drugs can cause. Some teenagers use durgs just cause it's illegal and it will make them look "bad" or something like that. Those teenagers don't stop at ciggarrets and alcohol. Those drugs, at some point, will have no effect at them. Or, he's too old for just using those, so he starts using others. And some more. And that can get them an overdose, that's the biggest drug problem, because it can get you killed.
But, it isn't everyone that uses durgs that get an OD and die. The Beatles used drugs. And that's what made their music change, and it got better!
This is a scene from The Yellow Submarine, one of The Beatles movies.
Here is the link: http://www.youtube.com/watch?v=x7snY1-js6s
Clear proof that they use to use drugs.
Rafaela off and I love The Beatles :D