Dr. Santos is a professor of psychology and head of Silliman Residential College at Yale University. Dr. Santos is an expert on human cognition, its origins, and the evolutionary biases that influence our all-too imperfect life choices. She is also knowledgeable in how behavioral change through positive psychology can lead to a happy and fulfilling life. Currently, the big project of Dr. Santos is to positively influence the culture of Yale University by teaching happiness and well-being. She created a course so meaningful that it became the most popular class taken at Yale in over 316 years. Dr. Santos is the host of the podcast, The Happiness Lab.