We’ve stood on the moon and dived to the deepest oceans. But how well do we know ourselves? For Chris Dancy, the answer is better than most. At any time, he has between 300 and 700 sensors, devices and applications monitoring his body, his environment, and everything he does. “How do different people affect my pulse rate?” asks Dancy. “Does ambient light affect my eating choices? Today, I am connected to myself. I can compare my present with my recorded past and identify the situations and conditions I want to encourage, and those I can do without.” He has taken control of his data and his life and lost over 100lbs in the process. April 22, 2015.