Good humor hypothesis was disproved by the discovery of

Options

A. Haeckel
B. Landsteiner
C. Fisher & Race
D. William Harvey

Answer

### Step-by-Step Solution:

1. **Understanding the Good Humor Hypothesis**:
- The Good Humor Hypothesis suggests that a person's mood, particularly a cheerful or happy mood, is linked to their overall health. This idea has roots in ancient Greek medicine, particularly from Hippocrates, and is also found in Indian Ayurveda.

2. **Historical Context**:
- The hypothesis posits that if a person maintains a good and cheerful mood, their health will be improved. This concept was widely accepted in ancient medical practices.

3. **Disproving the Hypothesis**:
- The Good Humor Hypothesis was disproved by the discoveries of William Harvey. Harvey is known for his groundbreaking work on the circulatory system.

4. **William Harvey's Discovery**:
- William Harvey discovered the principles of blood circulation, demonstrating that the movement of blood throughout the body is crucial for maintaining health. He explained how blood circulation is responsible for regulating body temperature and overall physiological balance.

5. **Conclusion**:
- The findings of William Harvey shifted the focus from the influence of mood on health to the importance of blood circulation in determining health status. Therefore, the Good Humor Hypothesis was disproved by Harvey's discovery.

6. **Final Answer**:
- The Good Humor Hypothesis was disproved by the discovery of William Harvey.