Frequent marijuana use by Colorado youths associated with psychotic disorders

Colorado became the first in the nation in 2012 to make the recreational use of marijuana legal. In the following year when recreational marijuana sales got underway, Colorado’s General Assembly mandated the Colorado Department of Public Health & Environment (CDPHE) to produce a report every two years by Jan. 31 on the health effects of marijuana use and trends in marijuana use among Coloradans.

The 2022 summary and report were released this week and delivered to the General Assembly, the Colorado Department of Revenue, and the state Board of Health. The decade of recreational marijuana use by the Mile High states shows a few positive trends.

-13.3 percent of youth used marijuana within the past month- a decrease from 20.6 percent in 2019

-60.4 percent of youth think regular marijuana use is risky – an increase from 50.1 percent in 2019

-Students driving after using marijuana decreased from 11.2 percent in 2019 to 5.5 percent in 2021

-6.8 percent of new mothers reported using marijuana during pregnancy, a decrease from 8.2 percent in 2019, and is less prevalent that alcohol and e-cigarette use

But not all trends are positive. CDPHE reports Substantial Evidence on the Health Effects of Marijuana Use/Consumption on Adolescents and Young Adults including some of these findings:

Daily or near-daily marijuana use by adolescents and young adults is strongly associated with developing a psychotic disorder such as schizophrenia in adulthood. These symptoms are worse with higher doses

Marijuana use by adolescents and young adults is strongly associated with developing psychotic symptoms in adulthood, such as hallucinations, paranoia, and delusional beliefs. The risk is higher with more frequent use and among those who start using marijuana at a younger age.

Daily or near-daily marijuana users can experience withdrawal symptoms when abstaining.

Marijuana users can become “addicted” to marijuana.

Weekly or more frequent marijuana use by adolescents is strongly associated with failure to graduate from high school.

CDPHE”s statements of Substantial Evidence on the Health Effects of Marijuana Use/Consumption on Driving include:

Driving soon after using marijuana increases the risk of a motor vehicle crash.

Using alcohol and marijuana together increases impairment and the risk of a motor vehicle crash more than using either substance alone.

The typical marijuana cigarette or joint in Colorado contains approximately 0.5 grams of marijuana, and the THC content in marijuana ranges from 12 to 23 percent THC; therefore, a typical joint contains between 60-115 mg of THC. For less-than-weekly marijuana users, smoking marijuana containing 10 mg or more of THC is likely to cause impairment that affects one’s ability to drive, bike, or perform other safety-sensitive activities.

(To sign up for a free subscription to Food Safety News,click here)


Read More
Dan Flynn

Latest

Laying odds on the potential for Martian water near future landing zones

Science & Nature We know Mars has water ice...

1,600-year-old phallic nail cleaner discovered near roadwork in England

Science & Nature Ancient Rome viewed male genitals as...

‘Exceptionally rare’ World War I-era biplane returns to Long Island

Science & Nature This 1919 Curtiss Oriole may have...

5 gnarly plants in the Okefenokee Swamp, from digestive slime to Earth’s fastest predator

Science & Nature The newly named UNESCO World Heritage...

Newsletter

Don't miss

Laying odds on the potential for Martian water near future landing zones

Science & Nature We know Mars has water ice...

1,600-year-old phallic nail cleaner discovered near roadwork in England

Science & Nature Ancient Rome viewed male genitals as...

‘Exceptionally rare’ World War I-era biplane returns to Long Island

Science & Nature This 1919 Curtiss Oriole may have...

5 gnarly plants in the Okefenokee Swamp, from digestive slime to Earth’s fastest predator

Science & Nature The newly named UNESCO World Heritage...

August stargazing: A planet parade, two eclipses, and one scary star

Science & Nature Trust us, August 12 is a...

‘Sabah is open for business’: Hajiji courts investors with promise of sustainable growth, carbon‑negative credentials

Sabah is pitching itself as an Asia-Pacific hub for impact investing, betting that its forests, biodiversity and natural resources can become drivers of economic growth as it seeks private capital for sustainable development. — Picture by Firdaus Latif By Julia Chan First Published: Monday, 13 Jul 2026 11:44 AM MYT KOTA KINABALU, July 13 —

Want Your Business to Be Seen Everywhere? Meet Tonia Ryan, Creator of Fix Your Search

Some people are good at their jobs. Then there is Tonia Ryan, who has turned “getting found online” into something close to magic. She is the creator of Fix Your Search, and if you have ever wondered why some businesses pop up everywhere while others seem invisible...

Grey Business processes $61 million as stablecoins dominate payments

Grey Business enables startups and SMEs to open US Dollar (USD) corporate accounts, send and receive international payments, convert currencies, and transact using stablecoins such as USDC and USDT...