Prenatal and prepubertal exposures to tobacco smoke in men may cause lower lung function in future offspring

Men who initiated smoking before 15 years of age may have offspring with reduced lung health compared to men who had never smoked. Grandmothers’ smoking in pregnancy may have a negative impact on their sons’ lung health, an effect that could be carried over to their grandchildren. Preventing smoking in these life periods might have potential benefits for several generations.

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