Read More:

A Comparison of Energy Expenditure Estimation of Several Physical Activity Monitors.
ncbi.nlm.nih.gov/pubmed/23669877
"Accurately and precisely estimating free-living energy expenditure (EE) is important for monitoring energy balance and quantifying physical activity."

How Accurate Are Fitness Trackers?
well.blogs.nytimes.com/2013/06/12/how-accurate-are-fitness-monitors/?ref=health
"Nate Meckes recognized that he needed to study the accuracy of activity monitors after wearing one."


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testtube.com/dnews/dnews-382-what-ancient-wine-tasted-like

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