Brain damage caused due to disease or trauma is permanent. Give reason.

Explanation

**Step-by-Step Solution:**

1. **Understanding Brain Damage**: Brain damage can occur due to various reasons, including diseases (like strokes or infections) or trauma (such as injuries from accidents).

2. **Types of Cells Affected**: The primary cells affected in the brain are neurons (nerve cells) and glial cells. Neurons are responsible for transmitting signals in the brain and throughout the nervous system.

3. **Cell Division in Neurons**: Unlike many other cells in the body, neurons do not undergo cell division after they have fully developed. This means that once neurons are damaged or destroyed, they cannot be replaced by new neurons.

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