" In effect, the negativity bias is tilted toward immediate survival, but against quality of life, peaceful and fulfilling relationships, and lasting mental and physical health. This is the default setting of the Stone Age brain. If we don’t take charge of it, it will continue to take charge of us. Tilting toward the positive simply levels the playing field. Taking in the good corrects for the two tendencies of the negativity bias: This practice decreases negative feelings, thoughts, and actions while increasing positive ones. And over time, taking in the good can help you experience that your core needs for safety, satisfaction, and connection are finally fully met. "

― Rick Hanson , Hardwiring Happiness: The New Brain Science of Contentment, Calm, and Confidence