Why does it hurt when you pluck a hair out but not when you have a haircut?

Explanation

### Step-by-Step Solution:

1. **Understanding Hair Structure**:
- Hair consists of two main parts: the hair shaft and the hair follicle. The hair shaft is the visible part of the hair that extends above the skin, while the hair follicle is the part embedded in the skin.

2. **Composition of Hair**:
- The hair shaft is made up of a protein called keratin and is composed of dead cells. These dead cells do not have any blood supply or nerve endings, which means they do not feel pain.

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