It sounds like you’re asking about Lou Gehrig’s syndrome – which is the common name for Amyotrophic Lateral Sclerosis (ALS).
Here’s a clear overview:
What is ALS?
ALS is a progressive neurodegenerative disease that affects nerve cells (motor neurons) in the brain and spinal cord. As motor neurons die, the brain loses the ability to control muscle movement. Over time, people with ALS become paralyzed, and eventually lose the ability to breathe without support.
Why is it called Lou Gehrig’s syndrome?
Lou Gehrig was a famous New York Yankees baseball player (1923–1939). He was known as the “Iron Horse” for his durability. In 1939, at age 36, he was diagnosed with ALS. His emotional “luckiest man on the face of the earth” farewell speech brought worldwide attention to the disease. He died two years later.
In the US and Canada, ALS is often called Lou Gehrig’s disease.
Key facts:
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Incidence – About 2 per 100,000 people per year; around 5,000 new cases diagnosed annually in the US.
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Onset age – Most common between 40–70, though it can occur younger.
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Life expectancy – Average is 2–5 years from diagnosis. About 10% live 10+ years (like Stephen Hawking, who had a rare slow-progressing form).
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Cause – ~90% are sporadic (no known family link). ~10% are familial (genetic mutations).
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No cure – Treatment focuses on slowing progression (medications like riluzole and edaravone) and managing symptoms (breathing support, physical therapy, feeding tubes).
Symptoms progression:
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Early signs – Muscle twitching (fasciculations), weakness in a limb, slurred speech, difficulty swallowing.
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Middle stage – Worsening weakness, muscle wasting, loss of hand/arm/leg function, trouble speaking clearly.
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Late stage – Paralysis, inability to eat/drink (needs feeding tube), inability to breathe without ventilator.
Not affected – Sensory nerves (touch, pain, temperature), eye muscles (usually), bladder/bowel control, cognitive function (in classic ALS, though some forms include frontotemporal dementia).