Kelvin Kwong is the vice president of product management at Big Health, which makes evidence-based digital behavioral medicine programs. He brings behavioral science to build experiences that help people sleep better, feel happier, and worry less. Prior to Big Health, he led behavior change efforts at Jawbone, a fitness tracker system. He has previously worked at Amazon, as an investor, and as a professional magician for nearly a decade. He received his M.B.A. from Harvard Business School.