Factors Identified as Increased Risk of ALS at an Earlier Age

  People with a BMI (body mass index) above the highest 1/3 percentile (greater than or equal to 25) have a higher risk of developing ALS at a younger age. People with an IQ above the highest 1/3 percentile have a significantly higher risk of developing ALS at an age of 56 and older. People with physical fitness above the highest 1/3 percentile have a higher risk of developing ALS before age 45.
European Journal of Neurology October 2016