Scientists Tracked Cannabis Users’ Hearts Day by Day-One Finding Stood Out

Key Points:

• A new study published in the Journal of the American College of Cardiology suggests cannabis use may reduce premature heartbeats, specifically premature atrial contractions (PACs), which are linked to atrial fibrillation risk.
• The 14-day randomized crossover trial involved 108 regular cannabis users without cardiac arrhythmias, showing about 9% fewer premature heartbeats on days they inhaled cannabis compared to abstinent days.
• Despite these findings, researchers caution that cannabis is not proven to be beneficial for overall cardiovascular health, noting other studies have linked frequent cannabis use to increased heart attack and stroke risk.
• The study is among the first to use continuous monitoring to assess acute cardiovascular effects of cannabis in daily life and highlights the need for further randomized trials to understand cannabis' impact on heart rhythm.
• Researchers emphasize these results should not change medical advice or personal behavior regarding cannabis use but may guide future investigations into therapies targeting early heartbeats.