Health
What 'clinically proven' is allowed to mean
The phrase sounds like a regulatory standard. In marketing it is closer to a description of a process, and the gap between the two is where the claim lives.
Health
Evidence, not advice.
2 stories
Health
Your sleep tracker's 'sleep score' is mostly an estimate
Wearables can measure movement and heart rate well. Sleep stages are a different problem — and the number on your screen is a guess dressed as a measurement.