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Study: Secondhand Marijuana Smoke Worse Than Cigarettes

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PITTSBURGH (KDKA) – Secondhand marijuana smoke may damage your blood vessels even more than cigarette smoke.

That’s according to a new study from the American Heart Association.

In the study, arteries in rats that inhaled secondhand marijuana smokefor one minute carried blood less efficiently for at least 90 minutes.

Similar exposure to second hand tobacco smoke cause blood vessel impairment for 30 minutes.

In a news release the AHA says, “While the effect is temporary for both cigarette and marijuana smoke, these temporary problems can turn into long-term problems if exposures occur often enough and may increase the chances of developing hardened and clogged arteries,” said Matthew Springer, Ph.D., study senior author and professor of medicine at the University of California, San Francisco’s Division of Cardiology.

Researchers say arteries of rats and humans are similar in how they respond to second hand tobacco smoke.

Researchers also found the mere burning of the plant material appears to cause the impaired blood vessels, not chemicals like nicotine and tetrahydrocannabinol. – READ MORE

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