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Oura adds menstrual data to Readiness Scores.

The algorithm behind the smart ring’s Readiness Score — a 0-100 body recovery ranking that considers your sleep quality, body signals, and activity levels — now includes menstrual cycle fluctuations. Users need to opt into Cycle highlights to access the update.

The change follows Oura finding that some menstruating users’ scores were misrepresented during the luteal phase that occurs after ovulation, in which some people experience increased heart rate and temperature, and decreased heart rate variability.

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