Bringing it to the forefront aids in health discoveries, not demonic reefer madness.
“When you burn something, whether it is tobacco or cannabis, it creates toxic compounds, carcinogens, and particulate matter that are harmful to health,” Cohen said in an email.
However, edibles may also play a role in heart disease, according to a May 2025 study.
“We found that vascular function was reduced by 42% in marijuana smokers and by 56% in THC-edible users compared to nonusers,” Dr. Leila Mohammadi, an assistant researcher in cardiology at the University of California, San Francisco, told CNN in a prior interview.
The danger of high potency weed
None of the studies included in the new meta-analysis asked users about the potency of THC in the products they consume. Even if they had, that information would be quickly outdated, Silver said.
“The cannabis market is a moving target. It is getting more potent every day,” she said. “What’s being sold to people today in California is 510 times stronger than what it was in the 1970s. Concentrates can be 99% pure THC. Vapes are over 80% THC.
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