I don't know and I think it's a very important question (perhaps vitally so). The best answer I have right now is education. When I was younger I literally had no idea what a sociopath was. I thought they were just very rare serial killers. I started reading about this stuff last year and even in that short period my life as changed for the better. Understanding how these people think and behave really helps you decide who to associate with. If I had known about this stuff when I was in my teens I would have avoided some huge issues