A member asked:

For how long does it take for the cardiovascular system to get back to normal after second-hand smoke exposure?

A doctor has provided 1 answer

Moments: Second-hand smoke is a cumulative carcinogen for the lungs, and can trigger asthma which kills people, usually children. I'm less persuaded that it's a factor for atherosclerosis. Know your rights and avoid second-hand smoke.

Answered 4/21/2017

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