Neurological
ALS (Lou Gehrig's Disease)
About ALS (Lou Gehrig's Disease)
Amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease, is a progressive neurodegenerative disease that affects nerve cells in the brain and spinal cord. It leads to muscle weakness, disability, and eventually death, as the brain loses its ability to initiate and control voluntary muscle movement.
Common Symptoms
- muscle weakness in limbs
- muscle cramps and twitching (fasciculations)
- difficulty speaking (dysarthria)
- difficulty swallowing (dysphagia)
- shortness of breath
- tripping and falling
- fatigue
- changes in voice
- muscle stiffness (spasticity)
- unusual clumsiness
Diagnosis
Diagnosing ALS often involves a comprehensive neurological examination, including tests to rule out other conditions. Electromyography (EMG) and nerve conduction studies (NCS) are commonly used to assess nerve and muscle function. Magnetic resonance imaging (MRI) of the brain and spinal cord may also be performed.
Causes
The exact cause of ALS is not fully understood, but it is believed to involve a complex interplay of genetic and environmental factors. Some cases, particularly familial ALS, are linked to specific gene mutations. However, most cases are considered sporadic, with no clear inherited risk.
Treatment Overview
Currently, there is no cure for ALS, but various treatments aim to manage symptoms and improve quality of life. Approaches may include medications to slow disease progression or relieve symptoms like muscle cramps and spasticity. Physical, occupational, and speech therapy are often utilized, and some individuals explore complementary therapies such as acupuncture or dietary changes.
Prognosis & Outlook
The prognosis for individuals with ALS can vary, but it is generally considered a progressive and ultimately fatal disease. The rate of progression differs among individuals, and the average life expectancy after diagnosis is typically a few years. Advances in supportive care and treatment may help to extend and improve quality of life.
Types & Variants
Sporadic ALS
This is the most common form, accounting for 90-95% of all cases. It occurs in people with no known family history of the disease.
Familial ALS
This form, accounting for 5-10% of cases, is inherited. A person with familial ALS has a 50% chance of passing the responsible gene mutation to each of their children.
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