Our brains are negative biased. Think about it: When our ancestors peeped out of the cave, was it in their best interests to see and admire the good things, like that lovely copse of May apples blooming over there? Or would it have served them better to clock the wild hyenas, foul-smelling water source, and extinguished fire? Which ones are you going to tell the group about? Gratitude makes our lives better, but for early people, recognizing and voicing the negative made their lives last.
