Marijuana is a green or gray mixture of dried, shredded flowers and leaves of the hemp plant (Cannabis sativa). It is the most often used illegal drug in this country. All forms of cannabis are mind-altering (psychoactive) drugs; they all contain THC (delta-9-tetrahydrocannabinol), the main active chemical in marijuana. There are about 400 chemicals in a cannabis plant, but THC is the one that affects the brain the most.
Marijuana addiction is a
phenomenon experienced by more than 150,000 individuals each year who enter
treatment for their proclaimed addiction to marijuana. Marijuana addiction is
characterized as compulsive, often uncontrollable marijuana craving, seeking,
and use, even when the individual knows that marijuana use is not in his best
interest. Marijuana addiction could be defined as chronically making the firm
decision not to use marijuana followed shortly by a relapse due to experiencing
overwhelming compulsive urges to use marijuana despite the firm decision not
to. This contradiction is characteristic of an addiction problem.
Marijuana addiction withdrawal symptoms include but are not limited to:
Symptoms of marijuana withdrawal first appear in chronic users within 24 hours. They are most pronounced for the first 10 days and can last up to 28 days.
Smoking marijuana causes some changes in the brain that are like those caused by cocaine, heroin, and alcohol.
People who smoke marijuana often develop the same kinds of breathing problems that cigarette smokers have: coughing and wheezing. They tend to have more chest colds than nonusers. They are also at greater risk of getting lung infections like pneumonia.
You can get high from second hand marijuana smoke
In one study conducted in Memphis, TN, researchers found that, of 150 reckless drivers who were tested for drugs at the arrest scene, 33 percent tested positive for marijuana, and 12 percent tested positive for both marijuana and cocaine.
Smoking marijuana decreases blood flow to the brain
Marijuana is the most often used illegal drug in this country
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