Why does an athlete breathe faster and deeper than usual after finishing the race?

Explanation

### Step-by-Step Solution:

1. **Understanding the Need for Energy**:
- During a race, an athlete's muscles are engaged in intense physical activity. This activity requires a significant amount of energy to sustain performance.

2. **Increased Demand for Oxygen**:
- To meet the energy demands of the muscles, the body requires more oxygen. Oxygen is essential for the process of cellular respiration, which produces energy.

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