Explore addiction as a brain disorder rather than a character flaw, examining how substances and behaviors alter brain chemistry and why some people are more vulnerable than others.

샌프란시스코에서 컬럼비아 대학교 동문들이 만들었습니다
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샌프란시스코에서 컬럼비아 대학교 동문들이 만들었습니다

Lena: Hey everyone, welcome to today's episode! I'm Lena, and I'm joined by my friend Miles to talk about something that affects millions of people but is often misunderstood - addiction. Miles, I was shocked to learn that addiction isn't just about a lack of willpower or bad choices, but is actually classified as a brain disorder. That completely changes how we should think about it, right?
Miles: Absolutely, Lena. The American Society of Addiction Medicine defines it as a chronic brain disorder, not a character flaw. What's fascinating is how substances and certain behaviors literally change your brain chemistry. When we engage in pleasurable activities like eating good food or spending time with loved ones, our brain releases dopamine, creating that rewarding feeling.
Lena: But with addiction, that normal reward system gets hijacked, doesn't it?
Miles: Exactly! Substances like alcohol or opioids—or even behaviors like gambling—flood the brain with massive amounts of dopamine. Over time, your brain becomes desensitized, so you need more and more to feel the same effect. It's why alcohol use disorder is actually the most common addiction in the United States, affecting about 10% of people aged 12 or older.
Lena: You know, I think many people don't realize that addiction isn't just about illegal drugs. Prescription medications, alcohol, even activities like gaming can become addictive. Let's explore what actually happens in the brain when addiction takes hold and why some people are more vulnerable than others.