Tough living, tough person?

:twak: You know I read a blog earlier about how people that grew up in a tough neighborhood or had a rough family situation we automatically a tough person physically. Where I do beleive this is maybe mental toughness, but I don't nessicarily beleive everyone who had a shitty childhood is tougher for it now, it might even make them weaker as a fighter if they can't control their emotions, i.e. mike tyson. So I just want to get everybodys opinion as to what they think about this subject, so let me know. Dueces.