Dr. James Berry explains that addiction is rooted in the brain’s reward system, where activities that release dopamine, like eating or exercising, naturally make us feel good and reinforce positive behaviors. However, substances like drugs create “artificial rewards,” releasing large amounts of dopamine that can overpower the brain’s natural reward circuits. This rewires the brain, leading individuals to prioritize drug use over basic needs. Addiction often starts as a way to cope with trauma or emotional pain, making it hard to break free. Dr. Berry emphasizes that addiction isn’t just a matter of willpower but a complex process influenced by brain chemistry, trauma, and early exposure to substances.