Changing Perceptions of Marijuana Use

Shifting Attitudes Towards Cannabis

In recent years, societal views on marijuana have evolved significantly, primarily due to the legalization of cannabis in several US states and Canada. While many individuals refrain from smoking cigarettes because of their known health risks, the perception of marijuana is less clear. Are people beginning to believe that smoking marijuana or being exposed to it is safer than tobacco?

Research Insights

A study conducted by a group of US doctors and scientists sought to investigate this topic. Published in JAMA Network Open by researchers from the University of California San Francisco, the study reveals that since 2017, an increasing number of Americans perceive cannabis smoke as less harmful than cigarette smoke.

The researchers surveyed over 5,000 US adults across various demographics from 2017 to 2021. Participants were asked several questions to assess their views on the safety of marijuana compared to cigarettes, including:

– How safe is smoking one marijuana joint a day versus one cigarette a day?
– How does secondhand smoke from marijuana compare to secondhand smoke from tobacco?
– What are the risks of exposing adults, children, or pregnant women to secondhand smoke from tobacco or cannabis?

The findings indicated that in 2017, 35% of participants considered smoking marijuana safer than smoking cigarettes. By 2021, this percentage had risen to 46%. This shift in public perception raises concerns, as smoking cannabis can be equally detrimental to health, with some cannabis products potentially being more harmful than cigarettes.

Health Risks of Cannabis Smoke

Understanding the Dangers

Numerous studies have highlighted the negative health consequences of smoking marijuana. Users are at a heightened risk for heart and lung damage. For instance, laboratory tests demonstrated that even brief exposure to secondhand marijuana smoke caused harmful vascular effects that lasted longer than those caused by tobacco smoke. Additionally, comparisons of chest CT scans revealed that marijuana smokers exhibited more significant lung damage than their tobacco-smoking counterparts.

The Impact of Inhaled Smoke

Inhaling smoke from any source, including burned plants, poses health risks, regardless of the plant type. Combustion of organic materials generates various toxins, including acrylamides, tar, carbon monoxide, formaldehyde, and hydrogen cyanide, all of which can adversely affect the lungs, heart, and circulatory system.

Medical Cannabis Usage

Therapeutic Applications

While cannabis can serve as a medical treatment for specific conditions, such as alleviating nausea in cancer patients undergoing chemotherapy, it is typically administered in pill or liquid form—not through smoking. Overall, inhaling any substance, whether cannabis or tobacco, is detrimental to health.

Making Informed Decisions

Understanding the Popular Misconception

The casual use of marijuana and the emphasis on its medical benefits may contribute to the belief that smoking cannabis or exposure to its secondhand smoke is safe. However, popularity does not equate to truth. It is essential to protect yourself and those around you by making informed decisions regarding cannabis use.

References

Chambers J et al. Perceptions of Safety of Daily Cannabis vs. Tobacco Smoking and Secondhand Smoke Exposure, 2017–2021. JAMA Network Open. 2023; 6(8): e2328691 doi: 10.1001/jamanetworkopen.2023.28691

National Academies of Sciences, Engineering, and Medicine et al. The Health Effects of Cannabis and Cannabinoids: The Current State of Evidence and Recommendations for Research. National Academies Press (US). 2017. doi: 10.17226/24625

Wang X. et al. One Minute of Marijuana Secondhand Smoke Exposure Substantially Impairs Vascular Endothelial Function. J Am Heart Assoc. 2016; 5(8): e003858. doi: 10.1161/JAHA.116.003858