'If I feel guilty taking a device off, that's a warning sign': How fitness trackers made me — and others like me — obsessed with over-optimization

Woman with fitness tracker stopping during a sunny run, looking distressed.

I didn't realize I'd developed an unhealthy obsession with wellness and optimization. But looking back, there were definitely signs. This was more than a decade ago, long before recovery scores, longevity influencers and what the best smart ring colors are became water cooler conversation.

As a technology journalist, reviewing health gadgets and fitness trackers has always been part of my job but they gradually spilled over into my personal life too. At one point, I was wearing multiple fitness trackers at the same time because I didn't fully trust any single device. I'd compare the data, then transfer it into spreadsheets each night so I could better analyze it myself.