The evidence behind the platform
Evidence-graded reading on the questions Vitality Tracker is built around, written against the primary literature and cited inline. Every article ends with how the platform applies it.
Optimal sleep: what the evidence supports, and what it does not
Most numbers consumer sleep technology foregrounds have no demonstrated link to outcomes; duration, regularity and timing do. Which claims survive scrutiny, what a wearable can know, and the definition that holds.
Read the article →Medicine 3.0 and Lifestyle as Medicine
Where the term comes from, what the evidence says about lifestyle as the first prescription, and what the model asks of you.
Read the article →Self-tracking biomarkers: what the evidence shows, and how to do it honestly
Self-monitoring works in controlled studies; the value is in how you measure. Your own history as the reference range, and the rules VT follows to keep measurement honest.
Read the article →Meal planning ahead: the evidence, and why planning beats logging
What the behavior-change literature says about deciding in advance, how a weekly plan writes its own shopping list, and why planning beats logging.
Read the article →Try a shorter word, or check the method notes.
Vitality Tracker describes and tracks physiological measures recorded by your own consumer devices against your own history. It does not diagnose, predict or monitor any disease.
Who we learn from →