dr. marc darrow. dr. darrow is an expert on pain management.rtified in physical medicine and rehabilitation. he's an assistant professor at u.c.l.a.'s school of medicine and recently appeared in newsweek magazine. dr. darrow, welcome. good to see you. >> thank you, bella. >> you know, eight out of 10 people suffer from back pain at some time in their life. only headaches are more common. it sounds like an epidemic. what's causing all of this lower back pain? >> we're sitting at desks, we're sitting in our cars longer and we're standing for long periods of time. over 50 million people are hunched over their computers all day and there is so much more stress today. >> o.k., but, doctor, we're spending $50 billion a year and nothing seems to be working. >> well, what i want to show you is a breakthrough device that i believe is going to change the way we treat back pain forever. this unique device is called the back 2 life. >> but why is this so different from all the other options we just listed that aren't working so well? >> bella, let me show