Long before a child draws its first breath, the conditions of the womb are already shaping the architecture of the mind. Researchers at the Salk Institute have found that when a mother's immune system activates during pregnancy — as it does during serious infection — it leaves thousands of chemical marks on the developing brain of her offspring, silencing genes critical to healthy neuron formation. Published in September 2026, the study illuminates one of the quieter tragedies of human biology: that a mother's struggle against illness can, through no fault of her own, alter the developmental f
Maternal Illness Reshapes Fetal Brain Through Epigenetic Changes, Study Shows
Neurodevelopmental conditions including autism and ADHD affect approximately 10% of the American population, with prenatal maternal illness increasing offspring risk.