# Health Modifier Volumes

A **Health Modifier Volume** defines a spherical space in which a damageable object will take damage or receive healing. This could be for example a corrosive cloud that the player vehicle must pass through or avoid.

1. Create a new game object and call it whatever you wish.
2. Add a **Health Modifier Volume** component.
3. Add as many elements as required to the *Health Type Change Rates* list. For damage, the change rate must be negative, and for healing, make it positive.

Note that the sphere collider's radius must be at least as large as the *Max Effect Distance* defined in the inspector of the **Health Modifier Volume** component for it to work correctly.


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