Within the fields of neuroscience and psychology, comprehending the complex interactions between impulsivity and substance use disorders (SUDs) is an important goal. Decision-making and behavior are influenced by impulsivity, which is characterized by rash action without careful consideration of the consequences. The relationship becomes a study focus when SUDs, which are compulsive drug use despite negative consequences, are present. The reward circuits, limbic system, and prefrontal cortex all play a role in the neuro-circuitry that underlies impulsivity. Through reward processing, dopamine, a crucial neurotransmitter, connects impulsivity to SUDs. Susceptibility is also shaped by genetic factors. Research on neurobiology and addiction is integrated with insights to create more effective preventive and treatment methods. Impulsivity's neuro circuitry requires intricate connections between several brain areas and neurotransmitter systems. Generally speaking, impulsivity is the propensity to act without first evaluating the effects of one's actions. It has a big impact on several neuropsychiatric conditions and behavioral characteristics. Research founded that, studies on the neuro circuitry of impulsivity and its relationship to drug use disorders seek to understand the fundamental processes that underlie impulsive behavior and addiction. This information may eventually help build more specialized and successful preventive and treatment strategies for those who are at risk of developing drug use disorders.