“Quantified self” seems to be still quite unknown from most people. Nevertheless, it has been often commented on the web and people’s interest for the phenomenon is increasing. It is also known as “self-tracking” or “body-hacking”. But what is it ? Let’s put it like this : it’s a way of measuring our bodies (and soul). And of course, the possibility of sharing the data with others, because who would not be interested by our heartbeats on our daily jog?

Source: mysecurite.com

Why is this useful you wonder?
The people who use this type of technology believe that it is a way of improving their daily lives. For instance, if you do a lot of exercise, using these devices will help you keep a track of your improvements, hence getting physically better at what you do. Some apps can also measure and find out why you don’t sleep good at night by comparing the different type of information you have given ( such as diet, health supplements, exercise and alcohol consumption). But the real use of such a technology resides in the fact that it has a medical benefit:   new technologies make it simpler than ever to gather and analyze personal data, making it easier to keep a track of certain diseases for example.
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