NIDA for Teens: The Science Behind Drug Abuse
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You are at school and meet up with a friend. You express your concern about the Chemistry test to your friend.

YOU: Dude, Paul just told me the test was impossible. I thought I knew my stuff but now I’m really nervous. And if Paul thinks he messed up, then I'm done!

Your friend opens up a pill bottle and shakes out two pills of Adderall. He holds out his hand to you.

FRIEND: Just take these. They’ll help you concentrate.