Examples of diseases related to lifestyle include all , EXCEPT

Options

A. liver cirrhosis
B. emphysema
C. obesity
D. pneumonia

Answer

To solve the question regarding examples of diseases related to lifestyle, we need to analyze each option provided and determine whether it is influenced by lifestyle choices or not.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for diseases related to lifestyle, and we need to identify which option is NOT related to lifestyle.

2. **Analyzing Option A: Liver Cirrhosis**:
- Liver cirrhosis is a condition where liver cells are damaged and scarred.
- The most common causes include excessive alcohol consumption and hepatitis infections.
- Since alcohol abuse is a lifestyle choice, liver cirrhosis is related to lifestyle.

3. **Analyzing Option B: Emphysema**:
- Emphysema is a lung disease characterized by damage to the alveoli (air sacs) in the lungs.
- The primary causes include smoking and exposure to air pollutants.
- Smoking is a lifestyle choice, thus emphysema is also related to lifestyle.

4. **Analyzing Option C: Obesity**:
- Obesity is defined as having excessive body fat.
- It is often caused by a lack of physical activity and poor dietary choices (excessive calorie intake).
- Since these factors are lifestyle-related, obesity is indeed a lifestyle disease.

5. **Analyzing Option D: Pneumonia**:
- Pneumonia is an infection that inflames the air sacs in one or both lungs, which can be caused by bacteria, viruses, or fungi.
- The most common bacterial cause is Streptococcus pneumoniae.
- Pneumonia is primarily an infectious disease and is not directly related to lifestyle choices.

6. **Conclusion**: Based on the analysis, the disease that is NOT related to lifestyle is **D. Pneumonia**.

### Final Answer:
The correct answer is **D. Pneumonia**.