Why is Crystal Meth Addictive?

Even from the first time someone uses meth, the high is significant, and the brain registers that experience as a “hard-coded” memory.  The brain tries to recapture those same feelings that were experienced with the first use, which is usually impossible. Your brain readjusts to meth use almost immediately, which means that more and more of the drug is needed each time to obtain that initial high. This leads to severe meth addiction, which has some alarming and distressing effects on your body and mind.