A new study finds that consumer-grade fitness wearables are generally inaccurate when calculating calories burned. NPR's Leila Fadel speaks with the study's lead author Jason Kostrna.
Copyright 2026 NPR
A new study finds that consumer-grade fitness wearables are generally inaccurate when calculating calories burned. NPR's Leila Fadel speaks with the study's lead author Jason Kostrna.
Copyright 2026 NPR
Our back-to-school issue parses CCSD's enrollment slide, the homeschool boom, and substance-use care for the unhoused. Plus 2026's Top Doctors and Dentists list.