Familial ALS (FALS) runs in families. About 5% to 10% of people with amyotrophic lateral sclerosis have this type. Changes to a gene cause FALS. Parents pass the faulty gene to their children.
Amyotrophiclateralsclerosis (ALS) is a progressive neurodegenerative disorder that is marked by fasciculation, spasticity and progressive weakness of muscles, and results in difficulty ...