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What is the difference between a sleep monitor and a tracker: 7 apps, fitness bands and sleep monitoring systems
What is the difference between a sleep monitor and a tracker: 7 apps, fitness bands and sleep monitoring systems
16.06.2015 | 07:02
For all of us 24 hours is not enough to finish all the necessary stuff, and most of us sacrifice our sleep time to do it. The problem is obvious: people work a lot and sleep little. How can we...
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