# Biomarkers

A biomarker is a **measurable**, **objective** indicator of a biological state or condition, such as respiratory rate or heart rate. They are typically used to assess **normal biological processes**, pathological conditions, or responses to therapeutic interventions.

Biomarkers offer a snapshot of a user’s current health condition, **determined based on a single** [Face Scan plug-in](https://docs.intelliprove.com/product-docs/face-scan-plug-in)**.** They are therefore directly tied to a specific Face Scan and are stored with the actual Face Scan’s data.

The IntelliProve Engine utilises advanced [rPPG technology](https://intelliprove.com/technology) to accurately measure these parameters directly from the face scan, offering a non-invasive and efficient approach to health monitoring.

The following biomarkers are available:

-   [Heart Rate](https://docs.intelliprove.com/insights/heart-rate)
-   [Respiratory Rate](https://docs.intelliprove.com/insights/respiratory-rate)
-   [Heart Rate Variability](https://docs.intelliprove.com/insights/heart-rate-variability)
-   [Resonant Breathing Score](https://docs.intelliprove.com/insights/resonant-breathing-score)
-   [Blood Pressure](https://docs.intelliprove.com/insights/blood-pressure)