According to a new study published in the journal Addiction, neither the current nor the cumulative lifetime use of marijuana is associated with heart abnormalities at middle age. The study, first reported on by NORML, is titled Association between marijuana use and electrocardiographic abnormalities by middle age.
For the study researchers from Switzerland and the United States examined the relationship between cumulative marijuana use and the prevalence of electrocardiogram (ECG) abnormalities in a group of 2,585 middle age subjects. “Researchers controlled for several potential confounders, including subjects’ use of alcohol and tobacco, as well as blood pressure and cholesterol levels.”
Investigators reported: “We found no evidence that current or lifetime cumulative use of marijuana was associated with a higher prevalence or incidence of major or minor ECG abnormalities in this cohort, … although major ECG abnormalities seemed to be less frequent in current marijuana users. … Whether participants used marijuana daily, in the last 30 days or intermittently over a lifetime, marijuana use was not associated with an increase in prevalent or incident specific ECG abnormalities by middle-age.”
They concluded by stating that “Our finding that occasional marijuana was not associated with ECG abnormalities adds to the growing body of evidence that this level of marijuana use and CVD [cardiovascular disease] events and markers of subclinical atherosclerosis are not associated.”
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