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How can you tell if someone has been using marijuana?

Updated: 2/1/2006

If someone is high on marijuana, he or she might

• seem dizzy and have trouble walking;
• seem silly and giggly for no reason;
• have very red, bloodshot eyes; and
• have a hard time remembering things that just happened.

When the early effects fade, over a few hours, the user can become very sleepy. Remember, however, these symptoms do not mean marijuana usage. Use these symptoms as a general guide that may lead to further investigation.

Keywords: giggly bloodshot effects marijuana sleepy