Ellen Petry Leanse spent over 10 years at some of the world’s most successful tech companies such as Apple, Facebook, and Google before becoming an executive coach to business leaders and an instructor at Stanford University. Ellen also wrote a book titled, The Happiness Hack: How to Take Charge of Your Brain and Program More Happiness into Your Life, which dives into ways that we can rewire our brains to live a happier and more fulfilled life.