Autism Spectrum Disorder (ASD) is a complex neurodevelopmental condition driven by genetic, environmental, and neurobiological factors. Genetics, with 50-90% heritability, involves polygenic risk, rare mutations like copy number variations, and syndromes like Fragile X. Epigenetic changes, such as DNA methylation, link genes to environmental influences. Prenatal exposures—toxins, maternal infections, or obesity—disrupt fetal brain development, while […]