Matthew D. Sacchet is a neuroscientist, Associate Professor of Psychiatry, and Director of the Meditation Research Program at Harvard Medical School and Massachusetts General Hospital. His research focuses on the science of advanced meditation: states, stages, and endpoints of meditative development and mastery. His research also includes studies of brain structure and function using multimodal neuroimaging, in addition to clinical trials, neuromodulation, and computational approaches. He is notable for his work at the intersection of meditation, neuroscience, and mental illness. His work has been cited over 10,000 times and presented more than 170 times at international, national, regional and local venues including Cambridge, Harvard, Oxford, Princeton, Stanford, and Yale Universities, and the United Nations. His work has appeared in major media outlets including 10% Happier, CBC, CBS, Forbes, Men's/Women's Health, NBC, NPR, New Scientist, Scientific American, Time, Vox, and The Wall Street Journal. In 2017 Forbes Magazine selected Sacchet for the "30 Under 30".