How to turn wearable data into better sleep, energy, and focus | Written by Emilina Lomas | In fitness and health | October 2025

You’ve purchased a new wearable device. Now what? Most people keep track of their data. Almost no one knows what to do with it

You’ve purchased a new wearable device. Now what?

For the past two and a half years, I’ve written about health for the world’s number one health tracker. It quietly tracks everything from sleep to heart rate variability (HRV). In that time, I’ve had hundreds of conversations with curious but skeptical people:

“Do I really need to track my data?”
“What am I supposed to do with all these numbers?”
“Doesn’t that make me obsessed?”

All fair questions.

Because the answer honestly is Yes -All this data is completely meaningless if you don’t know what to do with it. It might make you a little obsessed if you don’t know how to use it. I know because I was there.

I’ve been using wearables since 2016. It’s safe to say I’ve done my time with wearables.

Even though I know how to use my data to improve my health (and my life in general), it’s clear that many people don’t really know what to do with all those data points.

So, here’s my mini guide to help you understand the benefits of biometric tracking —…