The main image shows 91,251 blood sugar readings from my Dexcom continuous glucose monitor (CGM). Each colored line shows one day. January 1 is at the top, with days progressing clockwise around the circle. Lines grow longer with more readings for that day. Blood sugars are color-coded and grouped based on the reading. I represented the in-range readings as white to make it easier to spot the days where my blood sugar control was not as good. High blood sugars are a colder colors, low blood sugars are warmer.”

Doug Kanter, founder of Databetes