Listen to the story on npr.org.

Technology has made it easier than ever to track your activity levels, your sleep cycles, how you spend your time, and more. The self-trackers who near-obsessively capture and analyze their own data are part of a growing "Quantified Self" movement.

Interested in giving self-tracking a try? Self-tracker Peter Zandan, an executive at Hill+Knowlton Strategies who headed up a panel on Quantified Self this year at South by Southwest, helped us curate this list of apps and devices to get more data feedback from your daily life.

Read More