# Triggering biological age acceleration computations

Since biological age acceleration computations are resource-intensive, we don't start them automatically on each new sample batch received. There are two options on how to trigger them:

1. Biological age accelerations will be calculated automatically 5 minutes after receiving the last batch with a user's data.
2. You can manually trigger these computations when the last batch is sent by calling `/bioage/calculate`.

<mark style="color:green;">`POST`</mark> `https://api-b2b.gerosense.ai/api/v2.2/bioage/calculate`

#### Headers

| Name                                            | Type   | Description      |
| ----------------------------------------------- | ------ | ---------------- |
| Authorization<mark style="color:red;">\*</mark> | String | Bearer \<token>  |
| Content-Type<mark style="color:red;">\*</mark>  | String | application/json |

#### Request Body

| Name                                       | Type   | Description                                                                                |
| ------------------------------------------ | ------ | ------------------------------------------------------------------------------------------ |
| user\_id<mark style="color:red;">\*</mark> | String | User's unique identifier                                                                   |
| model\_type                                | String | <p>Model to trigger.<br>Either <code>steps</code> or <code>bpm</code> (for heart rate)</p> |

{% tabs %}
{% tab title="200: OK The request has been accepted" %}

{% endtab %}
{% endtabs %}

{% code title="REQUEST (EXAMPLE)" %}

```bash
curl -X 'POST' 'https://api-b2b.gerosense.ai/api/v2.2/bioage/calculate' \
     -H 'accept: application/json' \
     -H 'Authorization: Bearer <token>' \
     -H 'Content-Type: application/json' \
     -d '{
       "user_id": "85b4453a-46de-484c-bbc2-12666ebc7ed9",
       "model_type": "steps"
     }'
```

{% endcode %}


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