Wow, I actually got down voted on this. So, let me clarify. There's an interesting case study of a woman who does not experience fear at all due to brain dam

Wow, I actually got down voted on this. So, let me clarify. There's an interesting case study of a woman who does not experience fear at all due to brain damage: http://news.discovery.com/human/psychology/fear-fearless-brain-emotion.htm http://news.discovery.com/human/psychology/fear-fearless-bra... https://www.psychologytoday.com/blog/extreme-fear/201012/the-strange-lives-women-no-fear https://www.psychologytoday.com/blog/extreme-fear/201012/the... While on the one hand, there may be cases where a lack of fear may be beneficial (and for some people, fear may be debilitating--for example, for those suffering from PTSD)--it can often act as a useful check on dangerous impulses. So, while I'm excited by the positive potentials here, I think that one has to be aware of the potential downsides.