Secondhand Smoke: MedlinePlus

Secondhand smoke is smoke that comes from the burning end of a cigarette, cigar, or pipe, and the smoke breathed out by the smoker affecting others.

10 Best Tips To Stop Smoking Cravings

Cancer and Tobacco Use - Vital Signs - CDC

Tobacco, Second-Hand Smoke and Cancer

Pharmacology: Does smoking tobacco decrease the effects of the majority of psychotropic drugs? - Quora

What Are the Most Common Nicotine Withdrawal Symptoms? - GoodRx

Smoking and Cholesterol: How It Affects Your Heart

PDF) Smoking and Passive Smoking

Smoking and COPD (chronic obstructive pulmonary disorder): MedlinePlus Medical Encyclopedia Image

Second-hand smoke harms children, Protect my smile

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Nicotine: What parents need to know - Partnership to End Addiction

My parents smoked heavily (around me) until I was 17; at what age do you think my lungs recovered? - Quora