# 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.

