Answer
See explanation
Work Step by Step
Myalgia can be caused by a variety of factors, including:
Muscle overuse or strain due to physical activity, exercise, or repetitive movements.
Infections, such as viral illnesses or bacterial infections, that affect muscles.
Injuries, trauma, or accidents that lead to muscle damage.
Inflammatory conditions, such as polymyalgia rheumatica or autoimmune disorders.
Certain medications, such as statins used to lower cholesterol.
Myasthenia gravis be caused by
Myasthenia gravis is caused by an immune system dysfunction where antibodies attack the neuromuscular junction, disrupting communication between nerves and muscles. The exact cause of this immune response is not fully understood, but it may involve genetic and environmental factors.