Big tech now encourages us to monitor everything from our heart rate to our glucose levels via smartphones and watches. How much privacy have we lost to the promise of self improvement – and is it time to stop?
First we counted our steps, then our heartbeats, blood pressure and respiratory rates. We monitored our sleep, workouts, periods and fertility windows. But there is plenty left to measure as we are sold the promise of self-optimisation by the vast and sometimes controversial frontier of health tracking – an increasingly medicalised market that has flourished since pedometers went digital and watches got smart.
The latest health metric available to consumers comes from a medical device originally designed for people with diabetes; it allows users to track their blood sugar levels. But, as always, the big questions are: will it make us healthier, and is it wise to sacrifice ever more intimate data?