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Marijuana side effects also wreak havoc on the brain when the drug is used habitually. The ability to learn, remember and adapt quickly to changes is impaired by marijuana use. Depression often occurs with marijuana usage, which feeds into the cycle of more drug use to treat the pain created by drug use. This cycle of addiction is very powerful and users soon find that they cannot stop using the drug even if they want to.
Marijuana addiction is a progressive disease and marijuana side effects include withdrawal and obsessive thought with the drug when it is not made available. Addiction is identified as a compulsive, uncontrollable craving for the drug even with pending negative consequences.