As we approach the beginning of the new year, many of us are probably considering— and maybe dreading— the notion of new year’s resolutions. Kelly McGonigal is a health psychologist in the field she calls “science help,” and she’s the author of the book The Willpower Instinct: How Self-Control Works, Why It Matters, and What You Can Do to Get More of It. She helps us make sense of ourselves and our self control.