The study has just been published in the prestigious journal Scientific Reports under the title \u201cEnvironmental tobacco smoke and sleep fragmentation in children with suspected sleep apnea.\u201d\u00a0<\/p>\n
\u201cMany parents believe that smoking outdoors protects their children,\u201d said Prof. Ariel Tarasiuk, director of the hospital\u2019s sleep disorders unit, who is recognized internationally for his research on sleep apnea (frequent halting of breathing while asleep) in children and adults, and their physiological consequences on the body.<\/p>\n
PROF. ARIEL TARASIUK (credit: Courtesy)<\/p>\n
\u201cOur findings suggest that this is not always the case. Tobacco smoke residues can travel indoors on clothing and hair, meaning children may continue to be exposed even when smoking occurs outside,\u201d he told The Jerusalem Post in an interview.\u00a0<\/p>\n
\u201cContinuous sleep is critical for childhood brain development; repeated fragmentation may impair cognitive and behavioral functioning. Smoking in a car where children are present or even when they\u2019re not there is also so harmful to youngsters,\u201d he explained.<\/p>\n
Tarasiuk asserted that smoking in another room, on a balcony, or near an open window cannot fully prevent exposure: \u201cThe only effective way to eliminate children\u2019s exposure to tobacco smoke is to maintain completely smoke-free homes and vehicles.\u201d<\/p>\n
Even parents who reported smoking \u201coutdoors only\u201d had children with measurable urinary cotinine. They tested for this metabolite of nicotine instead of relying only on parental reports because it serves as an objective, reliable biomarker of exposure.<\/p>\n
Residues also cling to hair and skin, not just clothing, so hand washing and changing clothes alone cannot fully eliminate exposure.<\/p>\n
Researchers found that children exposed to cigarette smoke<\/a> had poorer sleep quality, shorter sleep duration, and significantly more nighttime awakenings. Surprisingly, measurable nicotine exposure was also detected in children whose parents reported smoking only outside the home.<\/p>\n The findings point to the growing concern over third-hand smoke \u2013 toxic tobacco residues that remain on clothes, hair, skin, and household surfaces long after a cigarette has been extinguished. These residues can persist for weeks to months on surfaces.<\/p>\n Nicotine exposure impacts sleeping and breathing<\/p>\n Unlike many previous studies that relied primarily on parental reports, the Clalit-Soroka and BGU team combined overnight sleep lab studies with cotinine testing. The study included children aged one to 12 who were evaluated during sleep for snoring, obstructive sleep apnea, or other sleep-related breathing disorders. Nearly half lived in households where at least one parent smoked.<\/p>\n The team found a clear relationship between nicotine exposure and sleep quality. Children with higher cotinine levels slept less efficiently, spent less time asleep, and experienced 67% more nighttime arousals than children with lower or no exposure.<\/p>\n One of the study\u2019s most remarkable findings was the disconnect between parental perception and biological evidence. Although urine tests confirmed nicotine exposure, around 60% of parents reported that their children had not been exposed to cigarette smoke.<\/p>\n