When my mother was told she had ALS back in 2010, the prognosis we were given by her doctors was grim and unforgiving: This neurodegenerative condition, also known as Lou Gehrig’s disease, has no cure. It affects nerve cells in the brain and spinal cord, gradually paralyzing the entire body, except for the eyeballs. My mother would not be able to speak or swallow. She would not be able to kiss her own...