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a burning cigarette, with smoke curling upward into the air
April 29, 2017

Mayo Clinic Q and A: Toxic chemicals from cigarettes remain toxic in secondhand smoke

DEAR MAYO CLINIC: Is secondhand cigarette smoke dangerous to my health? ANSWER: The short answer to your question is yes, secondhand smoke is dangerous. Secondhand smoke — also known as environmental tobacco smoke — is a combination of the smoke coming from a burning cigarette and the smoke exhaled by the smoker, which spreads out to the surrounding space. Secondhand smoke contains the same toxic chemicals that are inhaled by smokers, including nicotine, carbon monoxide, benzene, formaldehyde, cyanide and a variety…

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