Amyotrophic Lateral Sclerosis commonly strikes individuals between which ages?

Amyotrophic Lateral Sclerosis (ALS), also known as Lou Gehrig's disease, primarily affects individuals in the 40 to 60 age range. This is supported by research indicating that the majority of diagnosed cases occur in adults, with a particularly high incidence between the ages of 55 and 75. The onset of ALS can sometimes occur in younger individuals, but it is much rarer for it to be diagnosed in those significantly younger than 40. Thus, the age group of 40 to 60 is considered the most common demographic for this condition, which aligns with the provided answer.