Dependence
There is a continuing debate about whether marijuana is addictive physically. It is difficult to classify it as a physical addiction. But it is known to use in large quantities lead to psychological addiction and social dependence, according to the Center for substance abuse research at the University of Maryland. Users usually show no signs of addiction or withdrawal, but those who want to quit smoking marijuana seek some kind of treatment through clinics or support groups, similar to alcoholism way.
People who are dying from smoking marijuana may think all the time on the drug and where to obtain it. Some may need more marijuana to feel the same effect and are found always lighting one of those cigarettes. Admission to places of rehabilitation for marijuana addiction has increased in recent years, and the product has gained more power, according Marijuana Addiction, the information website of Spencer Recovery Centers. Some believe that those who smoke a lot of marijuana can make the body look even more drugs.
Receivers
A study in monkeys showed that subjects begin to be injected with THC, the active chemical in marijuana, in the same way as they seek cocaine or morphine, reported in New Scientist on 16 October 2000. Researchers at the Institute national Drug Abuse (NIDA) of Baltimore injected with a small amount of THC monkeys through a lever pressed apes. Laboratory animals quickly learned how the drug administered alone, they were given up to 30 injections per hour.
When given a drug that blocked brain receptors for cannabis, the animals stopped pressing the lever. Many people say more studies are required in humans. They are not convinced that is physically addictive and argue that most drugs can leave with a few days of discomfort, seeing it as a habit rather than an addiction.
Brain changes
NIDA says marijuana use long term can lead to addiction but refers to him as a search and compulsive drug abuse, as the long-term use has harmful effects on social functioning. Irritability, insomnia, decreased appetite, anxiety and tremendous craving to receive the drug is reporting marijuana users much time trying to leave. one or two weeks are required for withdrawal symptoms subside.
Research has demonstrated changes in the brain similar to those seen in other harder drugs addictions, according to NIDA. The abstinence marijuana in laboratory animals led to an increase in the activity of nerve cells and changes stressed dopamine neurons involved in all drugs of abuse. NIDA warns that the investigation of the Archives of General Psychiatry 2001 showed that the adverse impact of marijuana on learning and memory can last for days or weeks – even after the effects of the drug have gone – because of their physical presence.
