Cannabis use has long been promoted by its advocates as a safe, natural alternative to other substances. However, recent research challenges this perception, highlighting significant health risks associated with its use, particularly concerning cardiovascular health. A study conducted in France has brought to light alarming statistics regarding the increased risk of heart attacks and strokes linked to cannabis consumption. This article delves into the findings of this study, exploring the physiological impacts of cannabis on the heart and the broader implications for public health.

The French Study: Alarming Findings

A comprehensive study by French scientists tracked more than 1,300 patients admitted to intensive care units across 39 hospitals. The research aimed to understand the correlation between recreational drug use, including cannabis, and cardiovascular events. The findings are striking:

• Among the 1,392 patients studied, 11% tested positive for recreational drug use, with cannabis being the most common.
• Those who consumed cannabis alone had almost double the risk of experiencing a cardiovascular event compared to non-users.
• Overall, recreational drug use was associated with a threefold increase in the risk of serious cardiovascular events, including heart attacks and strokes.

The study also highlighted that among various recreational drugs, MDMA posed a 4.1 times increased risk, heroin a 3.6 times risk, and cannabis a 1.8 times risk of cardiovascular events.

Physiological Effects of THC

The active ingredient in cannabis, tetrahydrocannabinol (THC), is believed to trigger the body’s fight-or-flight response. This response, typically activated during stress or fear, results in increased heart rate and blood pressure. Over prolonged periods, the heart endures more strain, which can lead to damage and increase the risk of heart disease and stroke.

Dr. Raphael Mirailles from Hospital Lariboisiere in Paris, one of the study’s authors, emphasised the critical nature of these findings. He suggested that systemic screening for recreational drug use in intensive care units could improve patient risk stratification and care, promoting drug withdrawal.

Implications for Public Health

The implications of these findings are profound, particularly as cannabis remains a popular drug among young adults. In England and Wales, cannabis is the most used drug among individuals aged 16 to 59, with the highest usage among those aged 20 to 24.

The study’s results underscore the need for heightened awareness and potential policy changes regarding cannabis use. Health professionals have called for hospitals to screen emergency room patients for drug use to better assess risks and manage care.

The broader public health narrative must address the misconception that cannabis is harmless because it is “natural.” The research clearly indicates that even natural substances can have significant adverse effects on health, particularly cardiovascular health.

Broader Context and Future Considerations

In light of these findings, it is vital for public health campaigns to educate the public about the potential risks associated with cannabis use. As debates around cannabis legality and medicinal benefits continue, understanding its full impact on health becomes increasingly important.

The ongoing research into cannabis’s health effects will play a crucial role in shaping future healthcare policies and practices. The findings from the French study, which will be presented at the 2024 European Society of Cardiology Congress, are a critical step in this direction, providing valuable data that could influence both medical guidelines and public perception.

Source: Daily Mail