Smartwatch dementia
If her Polar smartwatch tells her she slept like a baby last night, Sara asks, how can she feel the way she feels this morning?
![](https://www.collinpiprell.com/wp-content/uploads/2021/03/sleep-app-midnight-check-1014x1024.jpg)
I’ve had similar experiences with my Apple smartwatch. One morning it will report, on the basis of four different measures, I should be all bushy tailed and ready to rock, never mind I can hardly drag my butt to the teapot. The next morning it claims I had no “deep sleep” at all, … Read more