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Unlike artificial sweeteners, real sugar sends signals to the brain when it enters the gut, a new study by Columbia neuroscientists has found.

The brainchild of Vibhu Krishna, a medical student at Columbia’s Vagelos College of Physicians and Surgeons, "Faces of the Frontline," shares stories on Instagram from the COVID-19 front line.

Susannah Hills, MD, provides tips for making a homemade face covering, what materials to use, how to avoid contamination when donning and doffing your mask, and why masks are like underwear.

Columbia medical students celebrated early graduation in a web event on April 15. Among the 139 students, 84 will start work at NewYork-Presbyterian to provide support during the COVID-19 pandemic.