Why do we pass more urine in wet and cold season?

Options

A. Impairment of water absorption by nephrons
B. Kidney becomes more active
C. Sweating is much decreased
D. ADH secretion is increased

Answer

### Step-by-Step Solution:

1. **Understanding Body Temperature Regulation**:
- The human body maintains its temperature through various mechanisms, one of which is sweating. When the weather is hot, the body cools itself by evaporating sweat from the skin.

2. **Role of Sweating in Hot Weather**:
- In hot conditions, sweating increases significantly. This process helps to cool the body down, and as a result, the kidneys have a reduced workload because some of the waste products are eliminated through sweat.

3. **Kidney Function in Hot Weather**:
- Since the skin is actively involved in excretion through sweating, the kidneys do not need to produce as much urine. This means that during hot weather, the volume of urine produced is typically lower.

4. **Impact of Cold and Wet Weather**:
- In contrast, during cold and wet seasons, the body does not sweat as much. The reduced perspiration means that the skin is not contributing significantly to the elimination of waste.

5. **Increased Urination in Cold and Wet Conditions**:
- Since the kidneys are responsible for most of the waste elimination in these conditions, they have to work harder to filter and excrete waste products. This results in an increase in urine production.

6. **Conclusion**:
- Therefore, we pass more urine in wet and cold seasons because the body relies more on the kidneys for waste elimination due to decreased sweating.