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موسوعة كاملة لكل مسلم يحب دينه

4/29/2010, 12:55 am من طرف محمد احمد

السلام عليكم ورحمة الله وبركاته


اليوم اقدم لكم


موسوعه شامله لكل مسلم يحب دينه _ ساعد على نشرها واكسب اجر كبير

http://www.as7apcool.com/islam/


تحتوي الموسوعه على التالى :-


1-التاريخ الإسلامى بالكامل


http://www.as7apcool.com/islam/index.php?book=6&id=1



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سحابة الكلمات الدلالية


What Is Marijuana?

استعرض الموضوع السابق استعرض الموضوع التالي اذهب الى الأسفل

What Is Marijuana?

مُساهمة من طرف sheto في 3/31/2011, 1:48 am






Marijuana



What Is Marijuana?




Marijuana is the most widely used illegal drug in the United States.
It is a dry, shredded green/brown mix of flowers, stems, and leaves of
the plant Cannabis sativa. A stronger form of marijuana called hashish
(hash) looks like brown or black cakes or balls. The many street names
for marijuana include pot, herb, weed, grass, Jane, reefer, dope, and
ganja.


Marijuana is typically smoked in cigarettes (joints or spliffs),
hollowed-out cigars (blunts), pipes (bowls), or water pipes (bongs).
Some people mix it into food or brew it as a tea.


Short-Term Effects




The main active chemical in marijuana is THC
(delta9tetrahydrocannabinol). When smoked, THC passes from the lungs
into the bloodstream, which transports it to the brain and other organs.
When it reaches the brain, THC connects with a certain type of receptor
on nerve cells in areas that affect coordination, thought, memory,
concentration, sensory and time perception, and pleasure. This causes
the marijuana "high."


Marijuana users can experience these short-term effects:




  • difficulty in thinking and problem solving
  • problems with memory and learning
  • loss of coordination
  • distorted perception



These effects can make activities like driving dangerous while under the influence of the drug.
Long-Term Effects




Research has found that side effects from using marijuana frequently over a long period of time include:




  • Changes in the brain. Marijuana can affect the areas of the brain that play a part in response to stress, motivation, and reward.
  • Fertility implications. Animal studies suggest that
    heavy users may experience disruptions in ovulation or produce less
    sperm. So it’s possible people who use a lot of marijuana might have
    difficulty having children as they get older. Studies also show that
    babies born to women who use marijuana when they are pregnant may be
    more likely to have developmental and behavioral problems.
  • Respiratory problems. People who smoke marijuana
    have more respiratory problems — such as having more mucus, a chronic
    cough, and bronchitis (irritated breathing passages).
  • Changes in blood pressure. Over time, continued use
    of marijuana can lead to decreased blood pressure, which may cause
    dizziness. It also seems to impair the body's ability to fight off
    infections and some other diseases.
  • Emotional problems. Heavy users are more likely to
    report symptoms of depression than nonusers. They can also feel more
    anxiety, have more personality disturbances, and are at an increased
    risk of developing schizophrenia, a severe form of mental illness.



Other Possible Problems




In addition to the long-term and short-term side effects, you may
have heard that using marijuana may lead to other drug use. Although it
is not certain that marijuana is the direct cause, people who have used
marijuana are eight times more likely to have used cocaine, 15 times
more likely to have used heroin, and five times more likely to need
treatment for substance abuse.


There are also legal aspects to marijuana use: Every state has laws
against growing, possessing, and selling marijuana. Penalties vary from
state to state, but they usually involve fines and/or jail time for
those caught using or distributing marijuana. People who use marijuana
may end up with criminal records that can hurt plans for college or
finding a job.


Speaking of jobs, more and more places test for drug use as part of
the hiring process. It can take several weeks for marijuana to leave
someone's body. So people who use marijuana may find they don't get a
job they want — or, if their place of work does ongoing drug tests, they
may lose their jobs.
Medical Use of Marijuana




Marijuana can relieve nausea in people who have cancer and help
people with AIDS regain their appetite. Although the debate surrounding
medical marijuana continues, the U.S. Food and Drug Administration (FDA)
has approved pills that contain THC, the active ingredient in
marijuana, for legal distribution with a doctor's prescription. The THC
pill is only available in certain states.


At present, not enough data exist for scientists to determine whether
smoking marijuana is any more beneficial than taking its active
ingredient in pill form, although studies into this are ongoing.


What If I Want to Quit?




People who try to give up marijuana after using it frequently over a
period of time may experience withdrawal symptoms. These can include
irritability, sleeplessness, anxiety, depression, and lack of appetite.
As with caffeine addiction, symptoms of marijuana withdrawal are usually
worse a day or two after someone stops using marijuana. They gradually
decrease and are usually gone a week or two after the person no longer
uses the drug.


If you or someone you know would like to kick the habit, talking to a
counselor can help. Studies suggest that a combination of individual
counseling and group therapy sessions is the best approach for getting
off marijuana.







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