Adrenaline is also called the emergency hormone. Justify your answer.

Explanation

**Step-by-Step Solution:**

1. **Definition of Adrenaline**: Adrenaline, also known as epinephrine, is a hormone produced by the adrenal glands, which are located on top of the kidneys.

2. **Secretion During Emergencies**: Adrenaline is secreted in response to stressful situations or emergencies. This can include physical threats, intense fear, or any situation that requires a quick response.

3. **Physiological Effects**: Once released into the bloodstream, adrenaline triggers several physiological changes in the body:
- **Increased Heart Rate**: It accelerates the heart rate, which helps pump more blood to vital organs and muscles.
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