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Exploring the Association of e-Cigarette and/or Cannabis Use with Heavy Episodic Drinking among Ontario Adults

The use of e-cigarettes and cannabis are significantly associated with heavy episodic drinking among adults, indicating that those who engage in the dual use of e-cigarette and cannabis may be an important group to target with intervention programs. Click here to read the full study, published in Substance Use & Misuse. For more information on

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Doctors Inform Parents of Marijuana Use Linked to Youth Mental Health

Dr. Roneet Lev, with Scripps Hospital Emergency Room, wants to make sure parents and youth are making informed decisions and understand the risks. During Thursday’s event, doctors laid out the relationship between marijuana use and youth mental health. Lev warned that cannabis use is a suicide risk factor for people under the age of 25.

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Prenatal Cannabis Exposure Associated with Mental Disorders in Children that Persist into Early Adolescence

Prenatal cannabis exposure following the middle of the first trimester—generally after five to six weeks of fetal development—is associated with attention, social, and behavioral problems that persist as the affected children progress into early adolescence (11 and 12 years of age), according to new research supported by the National Institute on Drug Abuse (NIDA), part

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Comorbidity and Coaggregation of Major Depressive Disorder and Bipolar Disorder and Cannabis Use Disorder in a Controlled Family Study

In this cross-sectional study of 586 probands and 698 first-degree relatives, cannabis use disorder and bipolar disorder II in probands were associated with an independent increase in risk of cannabis use disorder in relatives; bipolar disorder I and major depressive disorder in probands were not significantly associated with cannabis use disorder in relatives. The risk

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Highly potent marijuana tied to worse mental health outcomes

Marijuana is the third-most commonly used drug globally, after alcohol and nicotine. Its potency, measured by the concentration of THC, has steadily increased over the past few decades, raising the risk of users experiencing psychosis and addiction, according to an analysis published in the Lancet last week that was conducted by a team of mental

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Clinical management of cannabis withdrawal

Cannabis withdrawal is a well-characterized phenomenon that occurs in approximately half of regular and dependent cannabis users after abrupt cessation or significant reductions in cannabis products that contain Δ9-tetrahydrocannabinol (THC). This review describes the diagnosis, prevalence, course and management of cannabis withdrawal and highlights opportunities for future clinical research. Read the full study published in

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Association of cannabis potency with mental ill health and addiction: a systematic review

Cannabis potency, defined as the concentration of Δ9-tetrahydrocannabinol (THC), has increased internationally, which could increase the risk of adverse health outcomes for cannabis users. We present, to our knowledge, the first systematic review of the association of cannabis potency with mental health and addiction (PROSPERO, CRD42021226447). We searched Embase, PsycINFO, and MEDLINE (from database inception

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Highly potent weed creating marijuana addicts worldwide, study says

Higher concentrations of tetrahydrocannabinol or THC — the part of the marijuana plant that makes you high — are causing more people to become addicted in many parts of the world, a new review of studies found. Read the full article from CNN here: https://amp.cnn.com/cnn/2022/07/25/health/marijuana-potency-addiction-study-wellness/index.html For more information on the International Academy on the Science

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WADA Executive Committee Approves 2023 Prohibited List

On September 23, the World Anti-Doping Agency’s (WADA’s) Executive Committee (ExCo) held its second meeting of the year in Sydney, Australia. ExCo members, some of whom attended in person and others virtually, were updated on WADA’s progress on key priorities, took a number of decisions – the main ones being summarized below – and made

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Doctors Inform Parents of Marijuana Use Linked to Youth Mental Health

Dr. Roneet Lev, with Scripps Hospital Emergency Room, wants to make sure parents and youth are making informed decisions and understand the risks. During Thursday’s event, doctors laid out the relationship between marijuana use and youth mental health. Lev warned that cannabis use is a suicide risk factor for people under the age of 25.

Read More »
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