Trying to increase our happiness is not a new idea. "Life, liberty and the pursuit of happiness" can be found in the Declaration of Independence, and well-known Yale professor Laurie Santos has a series of episodes in her podcast, "The Happiness Lab," called Happiness Lessons of the Ancients, where she explores happiness strategies from thinkers and societies of the past. What is relatively new is the field of positive psychology and its research-backed strategies for increasing happiness--or, as positive psychologists might see it, for helping us to thrive and flourish.