---
title: Heart Rate
slug: heart-rate
description: Learn about the importance of resting heart rate for assessing fitness and health in this informative document. Discover how a lower resting heart rate signifies a healthier heart, and explore a code example for measuring and recording resting heart rate 
docTags: 
createdAt: 2021-11-15T15:09:27.000Z
---

Heart rate is a measure of your average heart beats per minute (bpm) while your body is in a rested state. It is a useful metric for monitoring your fitness level and overall health.

Generally speaking, a lower resting heart rate indicates a stronger and healthier heart muscle. A short-term increase in resting heart rate can indicate physiological stress from things like exercise, stress and anxiety, sleep deprivation, illness onset, etc.

```json
{
    "hr": {
        "status": "complete",
        "value": 60
    }
}
```

| **Output** | **Units**        | **Data Type** | **Description**                                                                                                 |
| ---------- | ---------------- | ------------- | --------------------------------------------------------------------------------------------------------------- |
| `hr`       | beats per minute | float         | The average resting heart rate is the average heart rate throughout an at rest measurement in beats per minute. |