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Can secondhand smoke cause lung cancer?

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There are two types of secondhand smoke: the stuff a smoker breathes out and the cloud that drifts from a cigarette, pipe, or cigar. Both are bad for you.

So, even if you wouldn't dream of lighting up a cigarette, you still take in harmful chemicals when you're around someone who does. There are at least 70 kinds in secondhand smoke that can lead to cancer.

There are no safe amounts, so try to avoid secondhand smoke as much as you can. Take a pledge to make your home and car tobacco-free zones.

SOURCES:

American Cancer Society: "What Causes Non-Small Cell Lung Cancer?" "Health Risks of Secondhand Smoke," "Radon and Cancer," "Radon Gas and Lung Cancer," "Asbestos and Cancer Risk," "World Health Organization: Outdoor Air Pollution Causes Cancer."

American Lung Association: "Asbestos," "Lung Cancer Fact Sheet."

Loomis, D. , April 2014. Chinese Journal of Cancer

Melkonian, S. , January 2016. Cancer Epidemiology, Biomarkers & Prevention

American Diabetes Association: "Glycemic Index and Diabetes."

U.S. Consumer Product Safety Commission: "Asbestos in the Home."

Reviewed by Louise Chang on April 17, 2018

SOURCES:

American Cancer Society: "What Causes Non-Small Cell Lung Cancer?" "Health Risks of Secondhand Smoke," "Radon and Cancer," "Radon Gas and Lung Cancer," "Asbestos and Cancer Risk," "World Health Organization: Outdoor Air Pollution Causes Cancer."

American Lung Association: "Asbestos," "Lung Cancer Fact Sheet."

Loomis, D. , April 2014. Chinese Journal of Cancer

Melkonian, S. , January 2016. Cancer Epidemiology, Biomarkers & Prevention

American Diabetes Association: "Glycemic Index and Diabetes."

U.S. Consumer Product Safety Commission: "Asbestos in the Home."

Reviewed by Louise Chang on April 17, 2018

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