Which of the following can be categorised as an age - related disorder ?

Options

A. Myasthenia gravis
B. Tetany
C. Muscular dystrophy
D. Osteoporosis

Answer

To determine which of the following options can be categorized as an age-related disorder, we will analyze each option one by one: Myasthenia Gravis, Tetany, Muscular Dystrophy, and Osteoporosis.

### Step-by-Step Solution:

1. **Myasthenia Gravis**:
- Myasthenia Gravis is a neuromuscular disorder characterized by weakness of the skeletal muscles.
- It occurs due to the inability of nerve impulses to reach the muscles effectively.
- This disorder is not specifically age-related and can occur in individuals of various ages.
- **Conclusion**: Not an age-related disorder.

2. **Tetany**:
- Tetany is characterized by increased neurological excitability leading to muscle spasms.
- It is often caused by low calcium levels in the body.
- Similar to Myasthenia Gravis, Tetany is not specifically associated with aging and can occur at any age.
- **Conclusion**: Not an age-related disorder.

3. **Muscular Dystrophy**:
- Muscular Dystrophy is a genetic disorder that results in the progressive loss of muscle mass and strength.
- It is primarily caused by genetic mutations and is not linked to aging.
- **Conclusion**: Not an age-related disorder.

4. **Osteoporosis**:
- Osteoporosis is a condition that leads to decreased bone density and increased fragility of bones.
- It is particularly common in older adults, especially post-menopausal women, due to hormonal changes and aging.
- This condition is directly related to age and is characterized by an increased risk of fractures.
- **Conclusion**: Osteoporosis is an age-related disorder.

### Final Answer:
The correct answer is **Osteoporosis**, as it is the only condition among the options that is categorized as an age-related disorder.

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