After considerable controversy about its genus and species, it is now believed to belong to its own genus, Cannabaceae, consisting of one to three species: Cannabis sativa, Cannabis indica, and Cannabis ruderalis. The molecular structure of its psychoactive properties is unique in the plant world.
Effects while use marijuana can vary widely, are mainly attributable to tetrahydrocannabinol (THC), and mainly involve euphoria, a sense of well-being, intense concentration, perceptual distortions.
Though marijuana is not classified as a hallucinogen it provokes visual and auditory hallucinations for one to three hours. According of some resources marijuana is the least debilitating of all common intoxicants and has never accounted for a substantiated drug death.
It does not cause brain damage, sterility, impotence, insanity, or drug addiction. Socially and medically, alcohol and tobacco are considerably more dangerous.
Medical effects of marijuana
Pharmacologically, it has been used in various medical preparations since ancient times and, even today, some advocate its use for relieving the symptoms of glaucoma, asthma, stiff muscles resulting from brain injuries and multiple sclerosis, and the toxic effects resulting from chemotherapy.
Side effects of using marijuana
The dried leaves can be smoked as a cigarette, the dried tops of the female plant full of resin smoked with tobacco.
A user may experience dry mouth, rapid pulse rate, high blood pressure, tremors, vertigo, loss of coordination, dry reddened eyes, dilated pupils, depression, moodiness, temporary amnesia (because of its suppression of the brain hormone vasopressin), an uncontrollable fear of death, and panic.
A1986 Italian study found that smoking one joint can increase melatonin levels in the body 4000 percent.
It is not physically addictive, but could result in psychological dependence, and habitual use could require higher and higher doses to achieve the same effects.
Hash smoke, especially when combined with tobacco smoke, can result in bronchitis and other respiratory ailments.
Additional dangers include buying marijuana laced with other drugs or the herbicide paraquat, or dealing with assassin bugs that tend to inhabit crops.
Some growers have been able to produce super¬potent strains that contain 20 percent THC, or almost double that of naturally grown plants.
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