On a typical night, I go to bed wearing a tracking watch on one wrist and another type of tracker on the other wrist. Then I compare their sleep findings while I drink my morning coffee.
I direct the Center for Modern Digital Health at Carnegie Mellon University in Pittsburgh, where my team and I study how to use wearables to improve health and performance. My lab’s research has relied on consumer devices for years. I wear them for both science and pleasure, and I also wonder how much of what they tell me is true.
