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Marijuana
Marijuana
is the most commonly abused illicit drug in the United States. A
dry, shredded green/brown mix of flowers and leaves of the hemp
plant, cannabis sativa, is usually smoked as a cigarette (joint),
or in a pipe. It also is smoked in blunts, which are cigars that
have been emptied of tobacco and refilled with marijuana, often
in combination with another drug. It might also be mixed in food
or brewed as a tea. As a more concentrated, resinous form it is
called hashish and, as a sticky black liquid, hash oil. Marijuana
smoke has a pungent and distinctive, usually sweet-and-sour odor.
There are countless street terms for marijuana including pot, herb,
weed, grass, widow, ganja, and hash, as well as terms derived from
trademarked varieties of cannabis, such as Bubble Gum, Northern
Lights, Fruity Juice, Afghani #1, and a number of Skunk varieties.
If someone
is high on 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
When
the early effects fade, over a few hours, the user can become very
sleepy.
Addictive
Potential
Long-term
marijuana abuse can lead to addiction for some people; that is,
they abuse the drug compulsively even though it interferes with
family, school, work, and recreational activities. Drug craving
and withdrawal symptoms can make it hard for long-term marijuana
smokers to stop abusing the drug. People who have tried to quit
report irritability, sleeplessness, and anxiety. They also display
increased aggression on psychological tests. Withdrawal symptoms
generally peak approximately one week after the last use of the
drug.
The
short-term effects of marijuana include:
- problems
with memory and learning
- distorted
perception (sights, sounds, time, touch)
- difficulty
with thinking and problem solving
- loss
of motor coordination
- increased
heart rate
These
effects are even greater when other drugs are mixed with the marijuana,
and users do not always know what drugs are given to them.
Findings
so far show that regular use of marijuana or THC may play a role
in some kinds of cancer and in problems with the heart, respiratory
and immune systems.
- Cancer
- It's hard to know for sure whether regular marijuana use causes
cancer. But it is known that marijuana contains some of the same,
and sometimes even more, of the cancer-causing chemicals found
in tobacco smoke. Studies show that someone who smokes five joints
per day may be taking in as many cancer-causing chemicals as someone
who smokes a full pack of cigarettes every day.
- Effects
on the Heart - One study has indicated that a user's risk
of heart attack more than quadruples in the first hour after smoking
marijuana. The researchers suggest that such an effect might occur
from marijuana's effects on blood pressure and heart rate and
reduced oxygen-carrying capacity of blood.
- Lungs
and airways - Even infrequent abuse can cause burning and
stinging of the mouth and throat, often accompanied by a heavy
cough. Someone who smokes marijuana regularly may have many of
the same respiratory problems that tobacco smokers do, such as
daily cough and phlegm production, more frequent acute chest illness,
a heightened risk of lung infections, and a greater tendency to
obstructed airways. Smoking marijuana possibly increases the likelihood
of developing cancer of the head or neck. A study comparing 173
cancer patients and 176 healthy individuals produced evidence
that marijuana smoking doubled or tripled the risk of these cancers.
Marijuana abuse also has the potential to promote cancer of the
lungs and other parts of the respiratory tract because it contains
irritants and carcinogens. In fact, marijuana smoke contains 50
to 70 percent more carcinogenic hydrocarbons than does tobacco
smoke. It also induces high levels of an enzyme that converts
certain hydrocarbons into their carcinogenic form-levels that
may accelerate the changes that ultimately produce malignant cells.
Marijuana users usually inhale more deeply and hold their breath
longer than tobacco smokers do, which increases the lungs' exposure
to carcinogenic smoke. These facts suggest that, puff for puff,
smoking marijuana may be more harmful to the lungs than smoking
tobacco.
- Immune
system - Animal studies have found that THC can damage the
cells and tissues in the body that help protect against disease.
When the immune cells are weakened you are more likely to get
sick.
Effects of
Heavy Marijuana Use on Learning and Social Behavior
Research
clearly demonstrates that marijuana has the potential to cause problems
in daily life or make a person's existing problems worse. Depression,
anxiety, and personality disturbances have been associated with
chronic marijuana use. Because marijuana compromises the ability
to learn and remember information, the more a person uses marijuana
the more he or she is likely to fall behind in accumulating intellectual,
job, or social skills. Moreover, research has shown that marijuana's
adverse impact on memory and learning can last for days or weeks
after the acute effects of the drug wear off.
Students
who smoke marijuana get lower grades and are less likely to graduate
from high school, compared with their nonsmoking peers. A study
of 129 college students found that, among those who smoked the drug
at least 27 of the 30 days prior to being surveyed, critical skills
related to attention, memory, and learning were significantly impaired,
even after the students had not taken the drug for at least 24 hours.
These "heavy" marijuana abusers had more trouble sustaining
and shifting their attention and in registering, organizing, and
using information than did the study participants who had abused
marijuana no more than 3 of the previous 30 days. As a result, someone
who smokes marijuana every day may be functioning at a reduced intellectual
level all of the time.
Workers
who smoke marijuana are more likely than their coworkers to have
problems on the job. Several studies associate workers' marijuana
smoking with increased absences, tardiness, accidents, workers'
compensation claims, and job turnover. A study among postal workers
found that employees who tested positive for marijuana on a pre-employment
urine drug test had 55 percent more industrial accidents, 85 percent
more injuries, and a 75-percent increase in absenteeism compared
with those who tested negative for marijuana use. In another study,
heavy marijuana abusers reported that the drug impaired several
important measures of life achievement including cognitive abilities,
career status, social life, and physical and mental health.
Effects on
Pregnancy
Research has shown that some babies born to women
who abused marijuana during their pregnancies display altered responses
to visual stimuli, increased tremulousness, and a high-pitched cry,
which may indicate neurological problems in development. During
the preschool years, marijuana-exposed children have been observed
to perform tasks involving sustained attention and memory more poorly
than nonexposed children do. In the school years, these children
are more likely to exhibit deficits in problem-solving skills, memory,
and the ability to remain attentive.
Treating
Marijuana Problems
Treatment
has proven effective in treating marijuana abuse and dependence.
Sobriety Works clinical staff are trained in treatment strategies
specifically in this area.
If
you think you, or someone you care about, may have a problem with
marijuana, we encourage you to contact us by telephone at (831)
476-1747 or online at sobrietyworks@sobrietyworks.com.
All correspondence is caring, confidential, and respectful. Remember,
there is hope for a substance free future.
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