Does smoking outside protect your children from cigarette smoke? Israeli study says no

A new Israeli study published in Scientific Reports finds that smoking outdoors still exposes children to nicotine and harms their sleep quality. Researchers from Ben-Gurion University and Soroka Medical Center measured urinary cotinine in children and found that 60% of smoking parents reported no exposure, but tests showed otherwise. Prof. Ariel Tarasiuk recommends completely smoke-free homes and vehicles.

A new Israeli study challenges the common belief that smoking outdoors protects children from tobacco smoke exposure. Researchers at Clalit-Soroka University Medical Center and Ben-Gurion University of the Negev found that children whose parents smoke only on balconies or near open windows still show measurable nicotine exposure and experience poorer sleep quality. The study, published in Scientific Reports, combined overnight sleep lab tests with urinary cotinine measurements in children aged one to 12 who were evaluated for sleep-related breathing disorders. Nearly half of the children lived with at least one smoking parent. Results showed that children with higher cotinine levels had less efficient sleep, shorter sleep duration, and 67% more nighttime arousals. Notably, about 60% of smoking parents reported their children had no exposure, despite urine tests confirming nicotine. Prof. Ariel Tarasiuk, the study's lead, emphasized that tobacco residues cling to clothing, hair, and skin, and can travel indoors, so the only effective protection is completely smoke-free homes and vehicles. The findings highlight the risks of third-hand smoke and the importance of routine screening for tobacco exposure in children with sleep issues.