Powerful training could bring about ALS in those people with genetic possibility

Exercise may trigger the onset of the lethal nerve ailment amyotrophic lateral sclerosis (ALS), a new research finds. 

The research showed that people who exercised vigorously, and who also carried genes tied to ALS, produced the disorder at more youthful ages than people who were sedentary. The results recommend that physical exercise could exacerbate a genetic predisposition to the devastating disease.