Good morning! I am new to this site and I am seeking information on ALS so I thought this might be a good place to start. My husbands mother died of ALS at the age of 40. As it turns out her father also had the disease as well (my husbands grandfather). I think about this on a daily basis and I am wondering if anyone can give me any insight as to the chances that my husband may someday end up diagnosed with it. He has two older siblings, 40 and 37. I know diagnostics is not a cut and dry science but it weighs heavily on my mind all the time (not to his knowledge of course). Can anyone offer me any thoughts or knowledge they may have in they may have in this area? Thank u so much and god bless!