There's a book called The Denial of Death that basically states that we try and elevate these behaviors or control them so we don't feel like animals (helpless, powerless animals with no control over our deaths and other things). One of my psych professors highly recommends it.
![[Image: SigBarSping_zpscd7e35e1.png]](https://images.weserv.nl/?url=i169.photobucket.com%2Falbums%2Fu224%2FUchiha_Kina%2FTags%2FSigBarSping_zpscd7e35e1.png)