Mark Hatzenbuehler is the John L. Loeb Associate Professor of the Social Sciences in the Psychology Department at Harvard. He received his PhD in Clinical Psychology from Yale and completed his post-doctoral training in population health at Columbia, where he was a Robert Wood Johnson Foundation Health & Society Scholar. Prior to arriving at Harvard, he was a tenured Associate Professor in the Department of Sociomedical Sciences at Columbia. His research has been funded by the National Institutes of Health, the Centers for Disease Control and Prevention, and the William T. Grant Foundation. He has received several early career and distinguished scientific contribution awardsfrom the Society for the Psychological Study of Social Issues, the American Psychological Association, and the Association for Psychological Science. He is an elected fellow of the Academy of Behavioral Medicine Research, the premier honorary organization for scientists working at the interface of behavior and medicine.