https://www.nationaljewish.org/education/health-information/smoking-tobacco-use/secondhand-smoke/impact-on-adults
The U.S. Surgeon General has concluded that breathing even a little secondhand smoke poses a risk to your health.
secondhand smokeimpactadults
https://www.lung.org/quit-smoking/smoking-facts/health-effects/secondhand-smoke
Secondhand smoke causes more than 41,000 deaths per year and can cause or make worse a wide range of damaging health effects in children and adults.
american lung associationhealth effectssecondhand smoke
https://www.greenstate.com/explained/contact-high-science/
Nov 13, 2025 - Have you ever sat by someone who is smoking weed and felt high? Find out if the so-called 'contact high' is a real thing - or just a placebo.
highrealthingexploring
https://www.medicinenet.com/secondhand_smoke/article.htm
Jul 7, 2021 - Secondhand smoke can cause illness and disease in nonsmokers. Learn the definition, causes, risk factors, complications, and prevention of secondhand smoke.
secondhand smokefactseffectscausescomplications
https://www.nationaljewish.org/education/health-information/smoking-tobacco-use/secondhand-smoke/impact-on-children
The U.S. Surgeon General has concluded that breathing even a little secondhand smoke poses a risk to your health.
secondhand smokeimpactinfantschildren
https://ash.org.uk/key-topics/secondhand-smoke-2
Secondhand smoke (SHS) is harmful to health. Exposing children to smoking also makes it more likely that they will take up smoking themselves.
secondhand smokeash