Are Heroin Addicts?

The two are seldom in conjunction. It's all mediated by the brain, which means if your brain thinks this is going to be good, it will release endorphins and things do get better. There's a pretty definitive test in 1998 where they told some patients that they had gotten a placebo and then gave them maloxone. The ones who had been told they had a placebo, their pain went back up.