Yale Psychology Professor Laurie Santos taught "Psychology and the Good Life" first in spring 2018 in response to concerning levels of student depression, anxiety, and stress on campus. It became the most popular class in Yale's history. Next, Coursera offered the course online, calling it "The Science of Well Being" and, to date, over 400k people have taken it. Laurie Santos has definitely hit a nerve. The good news is that we have a lot more control over our happiness levels than we think. Laurie talks about how to put the science of happiness and well-being to work in our own lives.