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Motor neuron disease is a disease of the nerve cells in brain and your spinal cord that control the voluntary muscle movement. And about 10% of the patients are known to have genetic defect. The risk factor of developing it is high if a family member has hereditary form of the disease. The symptoms are known to develop later in life after 40 years of age or around the age of 50 years. There is no cure or standard treatment for it. Symptomatic and supportive treatment can help the patients to maintain daily activities and quality of life. Look out for development of any new symptoms (difficulty in breathing or swallowing, drooling, gagging, head drop, muscle cramps, muscle weakness, paralysis, speech problems, voice changes, weight loss etc). Visit your doctor/neurologist for further discussion/clarification, evaluation and assistance.
Take care.