Addiction can cause significant cognitive impairments, including memory loss, impaired judgment, and reduced executive functioning. Chronic substance use alters neural pathways, particularly in the prefrontal cortex and hippocampus, which are critical for decision-making and learning. These deficits hinder an individual’s ability to make rational choices, resist cravings, and maintain recovery. Cognitive rehabilitation, involving exercises to enhance memory, attention, and problem-solving, is an integral part of treatment. Combining pharmacological interventions with therapies like cognitive-behavioral therapy (CBT) can restore cognitive functions over time. Early intervention is crucial to mitigating long-term cognitive damage associated with addiction.