Contrary to popular belief quitting marijuana is neither easy nor non-symptomatic. Marijuana is highly addictive and adolescents are at the highest risk of developing addiction to marijuana. Marijuana withdrawal is real and the symptoms are quite similar to withdrawal from other drugs. This is mainly because of the THC found in marijuana which alters brain chemistry upon smoking. Low levels of THC in the body cause most of the symptoms which characterize withdrawal. This is an important part of detoxing which is essentially sweating out the stored THC in the body. The symptoms, stay for the first few days of the detoxing process.