Our personal tech columnist tracked his sleep for two weeks with an Apple Watch and some software. Here’s why he concluded it was a pointless exercise. https://ift.tt/2XWOYgS The New York Times Our personal tech columnist tracked his sleep for two weeks with an Apple Watch and some software. Here’s why he concluded it was a pointless exercise. https://ift.tt/2NXguLy Our personal tech columnist tracked his sleep for two weeks with an Apple Watch and some software. Here’s why he concluded it was a pointless exercise.By BRIAN X. CHEN from NYT Technology https://ift.tt/2NXguLy
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