A multinational study showed that exposure to parental smoking during pregnancy or early childhood increases the risk of developing multiple sclerosis (MS) later in life. Previous research focused on active smoking as a risk factor for MS, but little was known about parental smoking and MS risk. The ongoing Environmental Risk Factors In Multiple Sclerosis (EnvIMS) study investigates the influence of environmental exposures on MS risk. Results varied among different populations, with a significant association between maternal smoking during pregnancy and MS in Norway. The study highlights the importance of early-life factors in determining MS risk and the complex interplay of genetic and environmental factors.
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Parental Smoking Linked to Increased MS Risk in Offspring
