http://www.weightlosssurgerychannel.com Discovering your WHY. The doctors can teach you âhowâ to change your eating and exercise habits before and after weight loss surgery, but to win the battle with obesity long term, you must discover you own WHY. Host Craig Thompson explains how identifying why you decided to have weight loss surgery and getting in touch with the raw emotions that prompted your decision can give you the strength to be more disciplined in your new post-op life.