Paul had bad knees from trying to get fit. Fernando is approaching his 50s and wants to keep running marathons. Phil’s a rock-climbing instructor. They’re all part of a global community called Quantified Self. This is where people gather and analyse their own data about their health, exercise, diet and sleep using web-based tools.
Quantified Self has been described as marrying technology with self-improvement. It’s also known as self-tracking, body hacking - and can possibly lead to "cyberchondria"! Right now, it’s fitness freaks, geeks and early adopters who are into this stuff, but as health care systems around the world are coming under increasing pressure, is self-tracking the way of the future? Will we all need to be body hackers in years to come?