The salient facts are these: Comfort addiction results in lower immunity to negative experiences (chapter 2). Negative emotions are an underappreciated resource (chapter 3). The pursuit of happiness can weaken you (chapter 4). Mindlessness is beneficial, especially when alternated with mindfulness (chapter 5). Machiavellianism, narcissism, and psychopathy give you an edge in tough, complex dealings with other people (chapter 6).
