Second Hand Marijuana Smoke

Science Daily: A minute of secondhand marijuana smoke may damage blood vessels

summary - Rats' blood vessels took at least three times longer to recover function after only a minute of breathing secondhand marijuana smoke, compared to recovery after a minute of breathing secondhand tobacco smoke. With many states legalizing medical and recreational marijuana, and possible corporate expansion within the cannabis industry, this type of research is important to help understand the health consequences of exposure to secondhand marijuana smoke, researchers said.