Doctor lorry santos is a professor of psychology at yale, where she teaches the university's most popular course in over 300 years. Over 40% college students report being too depressed to function most days and 65% report feeling overwhelmingly anxious. Ten % of students regularly port being suicidal, or at least feeling so suicidal that they've seriously considered taking their life in the last year. She joins us to day to finally reveal a secret to a happy life.