[smsm42]

> everyone's bodies produces opioids naturally

That's one of the dangers of opioids - once external opioids get into the system, it adjusts for them and if they are withdrawn, everything breaks down. Of course, if you are seriously ill, then your other choice - e.g. suffering severe debilitating pain or depression - is worse, so you choose lesser of evils. But that doesn't make opioids something nice and safe.

With alcohol, for most people usage in typical recreational doses is completely safe. I've been using alcohol recreationally for decades without any problems, and so did many people I know. I suspect doing the same with opioids would end very badly (and I'm not inclined to test that hypothesis and don't recommend to anyone).