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A drug, broadly speaking, is any
substance that, when absorbed into the
body of a living organism, alters
normal bodily function. There is nosingle, precise definition, as there are
different meanings in drug control
law, government regulations, medicine,
and colloquial usage.
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Abuse is the improper usage or treatmentfor a bad purpose, often to unfairly or
improperly gain benefit. Abuse can come in
many forms, such as: physical or verbalmaltreatment, injury, sexual assault,
violation, rape, unjust practices; wrongful
practice or custom; offense; crime, orotherwise verbal aggression.
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1. HEROIN
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.
Heroinis an opiate processed directly from the
extracts of the opium poppy. It was originally createdto help cure people of addiction to morphine. Upon
crossing the blood-brain barrier, which occurs soon
after introduction of the drug into the bloodstream,heroin is converted into morphine, which mimics the
action of endorphins, creating a sense of well-being;
the characteristic euphoria has been described as anorgasm centered in the gut. One of the most common
methods of heroin use is via intravenous injection.
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2. COCAINE
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Cocaineis a crystalline tropane alkaloid that
is obtained from the leaves of the coca plant. It
is both a stimulant of the central nervous
system and an appetite suppressant, giving rise
to what has been described as a euphoric senseof happiness and increased energy.
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3. Methamphetamine
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Methamphetamime, popularly shortened to meth or
ice, is a psychostimulant and sympathomimetic drug.
Methamphetamine enters the brain and triggers acascading release of norepinephrine, dopamine and
serotonin. Since it stimulates the mesolimbic reward
pathway, causing euphoria and excitement, it is proneto abuse and addiction. Users may become obsessed or
perform repetitive tasks such as cleaning, hand-
washing, or assembling and disassembling objects.Withdrawal is characterized by excessive sleeping,
eating and depression-like symptoms, often
accompanied by anxiety and drug-craving.
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4. MARIJUANA
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Cannabis, known as marijuanain its herbal form, is a
psychoactive product of the plantCannabis sativa.
Humans have been consuming cannabis since
prehistory, although in the 20th century there was a
rise in its use for recreational, religious or spiritual,
and medicinal purposes. It is estimated that about
four percent of the worlds adult population use
cannabis annually. It has psychoactive and
physiological effects when consumed, usually by
smoking or ingestion.
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5. OPIUM
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Opiumis a resinous narcotic formed from the latex
released by lacerating (or scoring) the immatureseed pods of opium poppies (Papaver somniferum).
It contains up to 16% morphine, an opiate
alkaloid, which is most frequently processedchemically to produce heroin for the illegal drug
trade. Opium has gradually been superseded by a
variety of purified, semi-synthetic, and syntheticopioids with progressively stronger effect, and by
other general anesthesia.
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Slower development of the brain and body, meaning
that teens who use drugs are likely to have smaller
brains .Loss of short-term memory and ability to learn
Underdeveloped skills
Deviant behavior andconduct disordersDepressionandsuicidal tendencies
Eating disorders
Damage to blood vessels in the brain, which can leadto strokes
Reduced brain function, which can lead to coma and
death
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