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Marijuana is the most commonly
used illicit drug in the U.S. Studies have shown that the
number of teenagers who have reported using marijuana nearly
doubled from 1991 to 1997. By 1997, 50% of high school seniors
reported having used marijuana and 88% reported that marijuana
was either "fairly easy" or "very easy"
to obtain.
Our drama with Seth illustrates
some of the most common reasons teenagers try marijuana: peer
pressure, a wish to fit in, a quick way to feel good, have
fun, relax, and improve performance. Teenagers give other
reasons for trying marijuana: to avoid dealing with problems,
to rebel and be different, to get attention, and to satisfy
curiosity. In addition, many teenagers believe media portrayals
of marijuana as a "cool" drug, with very few side
effects.
Unfortunately, marijuana has
many bad effects, both short- and long-term. In the last 30-40
years these ill effects have intensified, because today's
marijuana is about 25 times stronger that it was in the 1960's.
THC, the main ingredient in marijuana, builds up in the body,
contributing to the long-term effects of marijuana. The body
takes several WEEKS to get rid of the chemicals from just
one marijuana cigarette.
In the short term, marijuana
DECREASES your reaction time. In our story, Seth would find
it harder to track moving objects, and to judge time and distance
while using marijuana. In addition, he would be less coordinated.
Seth's athletic performance, therefore, would be much worse,
not better with marijuana: it is not a "performance enhancing
drug."
Seth also has good reason to
be afraid to drive after smoking that joint. Marijuana intoxication
contributes significantly to accidental deaths and injuries,
especially motor vehicle crashes. We've already mentioned
the problems in judging time and distance; in addition, marijuana
slows reaction time.
Smoking marijuana can cloud a
teenager's judgment in other ways, leading a young person
to do things he/she would not normally do, such as having
sex, or having sex without using contraception. This increases
a teen's chance of experiencing an unplanned pregnancy or
a sexually transmitted disease like syphilis and HIV. If a
teenager is pregnant, it's important to know that babies born
to mothers who smoke marijuana during pregnancy are smaller
and weigh less, which puts them at risk for many medical problems.
There are also many long-term
side effects of marijuana use. In boys, it can lower the sperm
count and testosterone levels. It causes irregular menstrual
periods and irregular ovulation in girls. Studies have shown
that marijuana use can damage the heart and lungs. In addition,
marijuana affects the immune system, and can weaken the body's
ability to fight tumors. This increases a teen's risk for
cancer.
The most important "job"
for most teenagers, like Seth in our drama, is to complete
their education. Regular marijuana use worsens short-term
memory, learning, and attention span. These problems with
learning last as long as 6 weeks after stopping marijuana!
Finally, the worst consequence
of marijuana use is that it is considered to be a "gateway
drug." Although trying marijuana does not necessarily
mean a teen will move on to other, "harder" drugs,
studies have shown that teenagers who use marijuana are 104
times more likely to use cocaine than those who have never
smoked marijuana before.
A special final word to our
teenage readers: Being a teenager is hard enough without adding
drugs to complicate things. It can be hard to say "no"
especially when your friends are pushing you to try marijuana.
But you have to believe in yourself and trust that you know
what's right and wrong for you.
We can tell you about all the
reasons why you shouldn't smoke marijuana, but we can't be
there with you to help you say, "no" to drugs. But
just as we can't make you say "no" to marijuana,
no one else can make you say "yes." No one can
force you to smoke a joint. You have all the facts. The choice
is yours.
Reference:
- Marijuana: A Continuing
Concern for Pediatricians (RE9915) - American Academy of
Pediatrics (AAP) Policy Statement, Oct.1999
- Marijuana: Your Child
and Drugs - AAP, 2000
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