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    Add as FriendMarijuana-all about it

    by: Gregory

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    1 :
    2 : What is Marijuna ? Marijuana is a green, brown, or gray mixture of dried, shredded Leaves, stems, seeds, and flowers of the hemp plant. Marijuana called by street names such as pot, herb, weed, Grass, boom, Mary Jane, ganja
    3 : History : Cannabis sativa(scientific name) is one of the oldest cultivated plants in the world Possibly used by humans for over 10,000 yrs Native to central Asia and widely used for thousands of years: As a hallucinogen Medicinally For fiber (rope, paper, fabric) – hemp For oil and seeds
    4 : The key psychoactive factor is contained in a sticky substance, or resin, that accumulates on these leaves Delta 9 - Tetrahydrocannabinol (THC) is the active ingredient that causes the “high”.
    5 : How is marijuana used? Marijuana is actually smoked as a cigarette (called a joint or a nail) or in a pipe or a bong. Recently it has appears in cigars, called blunts. Used it to brew a tea.
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    7 : Pharmacology When smoked, the marijuana is absorbed through the capillaries in the lungs. When the marijuana is eaten, the chemicals are absorbed into the small intestines.
    8 : How can you recognize someone who uses marijuana? He or she might: Seem dizzy and have trouble walking Seem silly and giggly for no reason Have very red, bloodshot eyes Have a hard time remembering things that just happened. He laughs without reason all the time
    9 : Marijuana smoke contains more tar and cancer causing substances than tobacco smoke. Smoking one joint = five cigarettes. With one puff you inhale 150 cancer - causing substances and twice as much tar as with tobacco. Smoking marijuana causes some neurotransmitters to clump up and become inactive. Neurotransmitters send messages throughout the brain for body functions. Interferes with thinking, ability to focus, memory lapses.
    10 : Three Basic Forms : Marijuana - Made from the leaves, flowers or stems of the hemp plant. Hash/Hashish - Concentrated form of marijuana by compressing marijuana resins into small blocks. Hash Oil - Made by soaking marijuana in a chemical solvent (such as rubbing alcohol) and then evaporating the solvent to obtain an oil concentrate.
    11 : “ Short-term effects of marijuana Use “ A few minutes after inhaling marijuana : The user’s heart start to beat rapid The bronchial passages relax and become expanded Blood vessels in the eyes expands Then the user : May experience pleasant sensations Colours and sounds may seem more intense Time appears to pass very slowly May suddenly become very hungry and thirsty
    12 : Long-term effects of marijuana use. Long-term use of marijuana may produce damages to : Brain and Central Nervous System Endocrine System Lungs Immune System Reproductive System The infant of a pregnant woman
    13 : Acute Effects : Euphoria Increased Heart Rate Short Term Memory Loss Increased Appetite Bloodshot Eyes Dry Mouth/Throat Sleepiness Psychosis Chronic Panic Attacks Hallucinations Paranoia Loss of Coordination
    14 : Reduces male hormone testosterone. Sex organs do not function properly. Reduces sperm count in adult males. Ages 10-20 is when male sex organs are maturing. Use can cause long-term negative affects on sex organs. Long Term Effects – Male Specific
    15 : Marijuana Myths and Facts Marijuana is safe because it is a plant. FACT - Many plants are toxic and unsafe for human use, including marijuana. Marijuana users do not go on to use other drugs. FACT - Studies show that marijuana users may have a predisposition to use other drugs. Marijuana wears off in a few hours. FACT - Because marijuana is stored in the body, its effects may be felt for days or weeks following ingestion. Marijuana relieves stress. FACT - Marijuana, like all drugs, merely postpones coping with problems and deadlines; marijuana can lead to depression.
    16 : MYTH: Marijuana is safer than alcohol. FACT: Marijuana contains carcinogenic chemicals, and it is a dangerous substance that should not be considered a "safe" alternative to other drugs. MYTH: Marijuana expands the mind. FACT: Marijuana clouds the mind, interfering with memory, speech, comprehension and decision-making ability. MYTH: Marijuana today is safer than earlier varieties. FACT: Horticultural development has increased the potency of marijuana and added many other dangerous chemicals. Marijuana Myths and Facts
    17 : Marijuana is a very harmful drug and usually leads the user to try stronger drugs. Marijuana affects not only our body but our mind too making the users to isolate themselves from society Marijuana is very spread among the young people so we must be careful wherever we are. Summary

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