ADHD is a neurodevelopmental disorder, which means the nervous system, including the brain, develops and functions differently. Fundamental differences in brain development and structure contribute to differences in behavior. This is why behavior strategies that work for neurotypical people are frequently unsuccessful for ADHDers. Our behaviors happen for different reasons. In fact, research shows that—compared to neurotypical children—punishment is less effective for ADHD kids, while immediate positive feedback and salient rewards are more effective.