what substance in cigarette smoke causes lung cancer Tobacco and Health Risks of Smoking Tobacco

Cigarette smoke includes volatile organic compounds (VOCs) such as aldehydes, which are classified as saturated aldehydes including formaldehyde and acetaldehyde, and unsaturated aldehydes acrolein and crotonaldehyde

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PMC 2563637

Since much of Wish You Were Here is dominated by the ethereal suite Shine On You Crazy Diamond, a tribute to and lament for the bands former leader Syd Barrett, Have A Cigar delivered a little bit of rock thunder at the start of the albums second side to offer some balance

They have fewer negative side effects less coughing, no bad taste, no dizziness -- which may be a risk factor for continued use of these products