That was an insightful comment, and I think you've answered your own question. > I don't understand how it hooks you > If something hurts, I guess that feels

That was an insightful comment, and I think you've answered your own question. > I don't understand how it hooks you > If something hurts, I guess that feels "good" Some people hurt from within. People with troubled childhoods or deep problems numb their mental pain with drugs. It works for them. The other factor is that there's a genetic component to addiction. Some people enjoy certain drugs more than others, while being more susceptible to addiction than others. You might be one of the lucky ones who can try heroin, not feel anything and not feel addicted either. Good for you.