According to a report in ChristianDaily.com, a June 2025 study published in a peer-reviewed journal of the British Medical Association, found that daily cannabis users are 34% more likely to develop heart failure than non-users.
The study by researchers from France drew on data from over 150,000 U.S. adults tracked over several years, and also linked marijuana use with an increased risk of heart attack and stroke. The objective was to evaluate the possible association between major adverse cardiovascular events (MACE) and the use of cannabis or cannabinoids.
Dr. Matthew Springer, a heart disease biologist at the University of California, San Francisco (UCSF), told the New York Times that marijuana inhalation delivers “thousands of chemicals deep into the lungs,” potentially increasing cardiovascular risk. His lab recently found that both edible and inhaled forms of marijuana were associated with comparable levels of blood vessel dysfunction.
An accompanying editorial by researchers from California USA said about the study:
Legalisation of medical and recreational cannabis commerce is spreading around the world, associated with increased use1 and falling perception of the risk. Frequent cannabis use has increased in several countries, and many users believe that it is a safe and natural way to relieve pain or stress. In contrast, a growing body of evidence links cannabis use to significant harms throughout life, including cardiovascular health of adults. The robust meta-analysis of cannabis use and cardiovascular disease by Storck et al4 in this issue of Heart raises serious questions about the assumption that cannabis imposes little cardiovascular risk.
This study is backed up by a March 2025 publication by the American College of Cardiology which revealed that cannabis users under the age of 50 are six times more likely to suffer a heart attack and three times more likely to die from cardiovascular causes compared to non-users.
According to a review article in JACC: Journal of the American College of Cardiology – “Marijuana is becoming increasingly potent, and smoking marijuana carries many of the same cardiovascular health hazards as smoking tobacco.”
As reported by Christian Daily International, in 2019, the Christian Medical & Dental Associations (CMDA) — a U.S.-based nonprofit representing thousands of Christian healthcare professionals — issued a position statement cautioning against recreational and medicinal marijuana use. “[T]here is a need for limiting access to marijuana,” the CMDA said. It warned of addiction, cognitive impairment, psychosis, and long-term health effects, especially among youth. “The adolescent brain is still developing and more vulnerable to the adverse effects of marijuana,” the statement emphasised.
