About 30,000 Americans are living with amyotrophic lateral sclerosis, or ALS (also known among baseball fans and classic-movie buffs as “Lou Gehrig’s disease”). In much of the world, rates of ALS are unknown. ALS is a progressive neurodegenerative disease that causes patients to lose control of their movements. First it steals the power to speak, then eat, and, finally, to breathe. Read more here.