What is the reason that we burn out our body fat only when we walk briskly? Why does normal walking not burn out the same amount of body fat when the distance covered remains the same?

Explanation

To understand why we burn more body fat when we walk briskly compared to normal walking, we can break down the explanation into several steps:

### Step-by-Step Solution:

1. **Understanding Brisk Walking**:
- Brisk walking refers to walking at a faster pace than normal. This increased speed means that the body is working harder.

**Hint**: Think about how your heart rate and breathing change when you walk faster.
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