Amyotrophic lateral sclerosis and multiple sclerosis likely share an environmental cause, geographic patterns reveal A new study published in Scientific Reports indicates that amyotrophic lateral sclerosis (ALS) and multiple sclerosis (MS) have an extremely high geographic association, even after controlling for race, gender, wealth, latitude, and access to neurological health care.
https://medicalxpress.com/news..../2025-10-amyotrophic