Neurodevelopmental disorders are a group of conditions that originate during the developmental period of the brain, affecting various aspects of cognitive, emotional, and physical functioning. The etiology is often multifactorial, involving a combination of genetic predispositions, prenatal exposures (such as teratogenic substances), and environmental factors (such as socioeconomic status and parental education). Certain conditions, like autism spectrum disorder and attention-deficit hyperactivity disorder, have been linked to specific genetic mutations, while others may arise due to complications during pregnancy or birth.