Related Experiment Video
Updated: Jan 19, 2026

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
Published on: August 18, 2020
The Risk of Cardiovascular Events on Cannabis' Highest Day
Sheldon M Singh1, Maria Koh2, Jiming Fang2
1Schulich Heart Center, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.
Abstract:
Knowledge of the acute cardiovascular effects of cannabis consumption remains largely unknown and is important given the changing landscape of legalization of recreational cannabis use. "4/20" is an annual event where many individuals gather to consume cannabis. An increased risk of adverse health events such as motor vehicle accidents has previously been reported to occur on "4/20." In this study, population-based administrative databases in Ontario, Canada, were used to evaluate the association between "4/20" and cardiovascular events. An increased risk of cardiovascular events on a population level was not observed on "4/20." Additional research into the changes in the prevalence of the use of cannabis with recreational legalization and acute and chronic risk with cannabis use is suggested.
Related Concept Videos
Chemotherapy-Induced Nausea and Vomiting: Cannabinoids
Two synthetic agonists of THC,...
CNS Stimulants: Cocaine, Amphetamines and Cannabinoids
Stress Prevention and Stress Management Techniques IV
Stimulants
Cocaine can be administered via snorting, injection, or smoking. It primarily functions by blocking the reuptake of dopamine, resulting in a euphoric high characterized by an intense sensation of happiness and...
Psychoneuroimmunology: Cardiovascular Disease
A key area of focus in PNI is the relationship between stress and coronary...
Exercise and Cardiovascular Response
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...

