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Marijuana Update

From the Director

1. Regular marijuana use by teens may have a negative and long-lasting effect on their cognitive development, putting them at a competitive disadvantage and possibly interfering with their well-being in other ways.

A. True

B. False


What are Marijuana Effects?

2. Although detectable amounts of THC may remain in the body for days or even weeks after use, the noticeable effects of smoked marijuana generally last from:

A. 4 to 6 hours

B. 3 to 5 hours

C. 2 to 4 hours

D. 1 to 3 hours


How Does Marijuana Produce it Effects?

3. Like most other drugs of abuse, THC stimulates neurons in the reward system to release the signaling chemicals serotonin and norepinephrine at levels higher than typically observed in response to natural stimuli.

A. True

B. False


Is Marijuana Addictive?

4. Over time, overstimulation of the endocannabinoid system by marijuana use can cause changes in the brain that lead to addiction, and it is estimated that about 9 percent of people who use marijuana will become dependent on it.

A. True

B. False


Is Marijuana a Gateway Drug?

5. Each of the following accurately describes expert opinions on whether or not marijuana is a gateway drug EXCEPT:

A. Most people who use marijuana do not go on to use other, “harder” substances, and cross-sensitization is not unique to marijuana

B. While alcohol and nicotine may prime the brain for a heightened response to other drugs, research clearly indicates that marijuana use is more likely to lead to the use of heavier drugs

C. Factors such as biological mechanisms and a person’s social environment are critical in an individual’s risk for drug use, and likely influence the decision to try other drugs in addition to marijuana

D. An alternative to the gateway-drug hypothesis is that people who are more vulnerable to drug-taking are simply more likely to start with readily available substances like marijuana


Is There a Link Between Marijuana Use and Mental Illness?

6. Several studies have linked marijuana use to increased risk for depression and anxiety, and its use has been shown to worsen the course of illness in patients who have schizophrenia and to produce a brief psychotic reaction in some non-schizophrenic users.

A. True

B. False


Adverse Consequences of Marijuana Use

7. Long-term, cumulative risks of marijuana use include sleep problems and a diminished or absent drive to engage in typically rewarding activities, which is known as aprovocation syndrome.

A. True

B. False


What are Marijuana’s Effects on General Physical Health?

8. Although marijuana’s precise contribution to lung cancer risk is difficult to determine, a few studies have shown a clear link between marijuana use in adolescence and increased risk for an aggressive form of testicular cancer that predominantly strikes young adult males.

A. True

B. False


Marijuana as Medicine

9. One concern with medical marijuana is that little is known about the long-term impact of its use by people with health- and/or age-related vulnerabilities, such as older adults or people with cancer, AIDS, cardiovascular disease, multiple sclerosis, or other neurodegenerative diseases.  

A. True

B. False


10. Which of the following is NOT a correct statement about treatment for marijuana addiction?

A. On average, adults seeking treatment for marijuana use disorders have used marijuana nearly every day for more than 5 years and have attempted to quit more than three times

B. People seeking treatment for marijuana use disorders, especially adolescents, may also suffer from other psychiatric disorders and may abuse other substances, such as cocaine or alcohol

C. Available studies indicate that effectively treating co-occuring mental health disorders with standard treatments involving medications and behavioral therapies may help reduce marijuana use

D. Contingency management, a therapeutic management approach based on frequent monitoring of the target behavior and providing or removing rewards, has shown progress in treating marijuana addiction


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