Overview

• Cumulative Stress draws on the previous month of ring biometrics and refreshes weekly to quantify longer-term physiological strain.
• The metric factors in sleep continuity, heart stress-response, sleep micro-motions, temperature regulation, and activity impact.
• A global rollout of the redesigned software begins in the coming weeks, bringing new Today, Vitals, and My Health tabs plus Habits, Routines, and expanded 12‑month cycle insights.
• Oura received Institutional Review Board approval for a U.S. Blood Pressure Profile study to run in Oura Labs later this year, combining ring data with a short questionnaire.
• Study participants will get likelihood assessments for hypertension (no signs, moderate signs, or major signs), and Oura says it validated Cumulative Stress against standard self-report scales.