Ahigh school student says to you, "what's the big deal about using pot? how can it hurt me? " the most accurate reply you could make is:

You could say: Smoking pot can increase your heart rate by 2 times for up to 3 hours. Some people can have a heart attack right after they use Marijuana. It can triple your chance of death from hypertension. Marijuana can also baffle your brain, resulting in temporary memory loss, or destroy your brain cells. So, you see, using pot can do a lot worse than just hurt you.

Hope that helped you! c: