david samadi is chairman and professor of neurology at lenox hill hospital and chief of robotic surgery>> and dr. marc siegel, nyu's langone medical center and author of "the inner pulse: unlocking the code of sickness and inner health." >> great to see you both. we have an action-packed show. the hollywood movie shedding light on a debilitating disease. take a look. >> it's called motorneuron disease. life expectancy is two years. >> the brain. what about the brain? >> the brain isn't affected. your thoughts won't change. it's just no one will know what they are. >> that was a clip from the oscar-nominated film "the theory of everything," depicting the life of physicist stephen hawking, following his diagnosis of motorneuron disease, also known as als or lou gehrig's disease. dr. smadi, hocking's an unbelievable person, his perseverance, intelligence, his brilliance, but this terrible disease. >> eric, but even more powerful than this is when you pay attention to this movie, you learn so much not just as a patient but also as a doctor. what is the message that we all learned from this?