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Older Moms' Kids Less Allergic, Study Finds
20 Jan
Summary
- Children of older mothers are less likely to develop allergies.
- Study analyzed data from nearly 35,000 children in Japan.
- Findings add nuance to discussions on advanced maternal age.

New research indicates that children born to mothers aged 35 and older may experience fewer allergic conditions during early childhood. A comprehensive study, analyzing health data from almost 35,000 children in Japan, found that offspring of older mothers were less likely to be diagnosed with food allergies in infancy.
By the age of four, these children also showed reduced rates of wheezing, eczema, and sensitivity to house dust mites. These patterns held even when considering factors like genetics, environment, and lifestyle, suggesting a complex interplay influencing allergy development.
The study, which drew on data from a large-scale Japanese cohort, also noted that when both parents were 35 or older, children exhibited lower odds of wheezing and food allergies compared to those with younger parents.




