Certainly.<p>1. Here is an example of reckless behavior associated with a lack of fear as it pertains to humans taking anti-fear drugs.<p>[1] <a href="http:&#x2F;&#x2F;news.nationalpost.com&#x2F;news&#x2F;there-was-no-fear-anymore-the-tiny-pill-fuelling-syrias-war-and-giving-fighters-superhuman-energy" rel="nofollow">http:&#x2F;&#x2F;news.nationalpost.com&#x2F;news&#x2F;there-was-no-fear-anymore-...</a><p>And then there are studies of animals changing their behavior to be more reckless.  I am curious to see your thoughts on correlation of animal and human testing.<p>[2] <a href="https:&#x2F;&#x2F;med.stanford.edu&#x2F;news&#x2F;all-news&#x2F;2011&#x2F;03&#x2F;scientists-discover-anti-anxiety-circuit-in-brain-region-considered-the-seat-of-fear.html" rel="nofollow">https:&#x2F;&#x2F;med.stanford.edu&#x2F;news&#x2F;all-news&#x2F;2011&#x2F;03&#x2F;scientists-di...</a>