What is ALS / Motor Neuron Disease?

Amyotrophic lateral sclerosis (ALS), also known as motor neuron disease, is a progressive neurodegenerative disorder that affects nerve cells in the brain and spinal cord, leading to muscle weakness, paralysis, and eventually respiratory failure. It is a rare condition, with an average survival of 2–5 years from diagnosis, though some patients live longer. There is currently no cure, and standard treatments focus on symptom management.