Inspired by a dictum that ‘you can’t improve something until you can measure it’, quantified self or self-hacking is a grassroots movement where people are measuring, logging and sharing various metrics related to their physical and mental wellbeing.

Often, this simple act of measurement alone can act as a powerful motivator for self-improvement.

In the future, quantified self is likely to become more mainstream - owing to the ubiquitous use of increasingly cheaper sensors, the rise of social media and emerging mobile technologies that make tracking a more passive undertaking.