How addictive is cannabis?
Long-term cannabis abuse can lead to addiction for some people; that is, they abuse the drug compulsively even though it interferes with family, school, work and recreational activities. Drug craving and withdrawal symptoms can make it hard for long-term cannabis smokers to stop abusing the drug. People trying to quit report withdrawal symptoms of irritability, sleeplessness and anxiety. They also display increased aggression on psychological tests, peaking approximately one week after the last use of the drug.
