. >> my name is solange and i lost 46 pounds using sensa. >> i lost 50 pounds and went from a size 19a 9/10. >> i'm david and i lost 93 pounds using sensa. [♪...] >> so, how does sensa work? well, at the heart of the sensa program is a revolutionary technology that's based on 25 years of research and testing. it was discovered by a brilliant research scientist and my hero, dr. alan hirsch. dr. hirsh holds five medical board certifications and is recognized as the world's leading expert on the science of smell and taste. he's appeared on oprah, good morning america, dateline, extra, the cbs early show, cnn and in hundreds of newspapers and magazines around the world. during the course of his pioneering research, dr. hirsch discovered the groundbreaking secret behind sensa that's changed the way the world looks at weight-loss forever. >> after 25 years of research, i finally figured out why diets don't work. most diets focus on what you eat-- they have it all wrong. sensa looks at why you overeat and the biological mechanisms that prevent you from overeating. it uses the body's natural