Northwestern has long been on the forefront of studying the causes of amyotrophic lateral sclerosis (ALS or Lou Gehrig's disease) and treating patients with the disease. Robert Kalb, MD, Director of the Les Turner ALS Center at Northwestern Medicine, is optimistic that more breakthroughs in the basic biology of the disease are on the way and a cure is possible. Photo Credit: Evangelos Kiskinis Lab, Northwestern University