Study Links Birth Order to 150 Health Conditions

A comprehensive study involving 10 million American siblings found correlations between birth order and various health conditions, with first-borns showing higher rates of autism and ADHD, and second-borns facing more substance use disorders.

13 Aug, 00:15 — 13 Aug, 00:15

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Fox NewsMixed22h ago

Birth order linked to 150 health conditions in study of 10 million American siblings

First-born children showed higher rates of autism, ADHD and food allergies, while second-born siblings faced more substance use disorders and migraines.

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Study Links Birth Order to 150 Health Conditions

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Birth order linked to 150 health conditions in study of 10 million American siblings

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