Dr. Robert Barrett and Dr. Louis Francescutti have written Hardwired which looks at how our deteriorating wellness is rapidly becoming a public health emergency. Our “caveman within” is evolved to hunt for any small morsels or measures of reward like sugar, fat, salt, sex, or social connection, our modern lives are overrun with daily stimuli that feed these senses to excess.  https://www.barnesandnoble.com/w/hardwired-robert-s-barrett/1137079845  Tooth And Nail: Hangnail Christmas EP