Marijuana is one of the most commonly used drugs in the United States, and concerns about its potential for addiction persist. While not everyone who uses marijuana becomes addicted, the risk is real, and certain factors may increase its likelihood. Despite the legalization of medical or recreational use in various states, marijuana remains illegal under federal law.
Chronic marijuana use can lead to cannabis use disorder or marijuana use disorder. Defined in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) as a result of either dependence or abuse of marijuana, this disorder affects approximately 30% of individuals who use the drug, according to the National Institute on Drug Abuse (NIDA).
Addiction to marijuana can be identified through behavioral signs:
Physical dependence and withdrawal are additional indicators of cannabis use disorder.
Earlier beliefs suggested that marijuana use rarely led to tolerance and withdrawal symptoms. However, today's marijuana contains higher levels of delta-9-tetrahydrocannabinol (THC), contributing to an increased risk of tolerance, dependence, addiction, and withdrawal. Studies indicate that individuals who stop chronic marijuana use experience withdrawal symptoms such as anxiety, insomnia, decreased appetite, excessive salivation, lowered pulse, irritability, mood swings, and aggressive behavior.
Even without physical dependence, some individuals may develop a psychological dependence on marijuana. This dependence can persist despite awareness of the dependence or a desire to quit.
Researchers continue to investigate why some individuals develop addiction while others don't. Potential risk factors include:
Chronic marijuana use can result in impaired cognitive functioning, including memory loss, concentration difficulties, diminished problem-solving skills, emotional control issues, and decision-making challenges. It can also negatively impact relationships, career, and education.
Various treatments can assist in overcoming marijuana addiction:
Cannabis use disorder is a complex issue, and addressing underlying factors is crucial for successful treatment. People may become dependent on marijuana for various reasons, and it is important to tailor treatment plans to individual needs.