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How does moonbird personalize my breathing rhythm?

Moonbird adapts to your body by calculating your ideal breathing rhythm using biofeedback.

Stefanie Broes avatar
Written by Stefanie Broes
Updated this week

We all breathe at a different pace, so moonbird helps you find the rhythm that suits your body best.

To discover your optimal breathing rate, follow the ‘Personal exercise’ journey in the app. During this session, moonbird uses a built-in PPG sensor (like the ones hospitals use on your finger) to read your heart signals. Based on that data, an algorithm calculates the breathing rate your body responds to most, helping you reach a deeper state of relaxation.

Tips for best results:

  • Rest your thumb gently on the sensor (like touching your phone screen — no need to press)

  • Watch the app screen to track your heart rate (HR), heart rate variability (HRV), and coherence level during the session

What do these mean?

  • Heart rate (HR): how many times your heart beats per minute

  • Heart rate variability (HRV): the variation in time between your heartbeats — higher variability usually means more resilience and calm

  • Cardiac coherence: the harmony between your breathing and heart rhythm — a sign of deep relaxation

The more consistent your breathing becomes, the more your HRV and coherence will improve. That’s how moonbird helps you relax in a way that’s scientifically grounded and personally tailored.

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