Digital fitness trackers have been a popular birthday present or Christmas gift for the last decade and, generally speaking, they are popular for two fundamental reasons. Firstly, they sell you the promise that you will get fitter if you use one and secondly, they are a fashion statement, in the same way as wearing Nike is. Unfortunately, according to this piece of research there is insufficient evidence to conclude that these techno-gadgets have any health benefits whatsoever. Indeed, in my book, if you want to get fitter, all you need is a balanced diet and a very physical sex life.
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