Dr. Raj talks about how bariatric, or weight loss, surgery works.; obese; loose weight; bariatric; weight loss; gastric bypass; obesity; restrictive; overweight; bariatric surgery; lose weigh; From Lap Band to Gastric Bypass, go inside the body to see how each type of weight loss surgery works.; obese; loose weight; bariatric; weight loss; gastric bypass; obesity; laparoscopic gastric banding; restrictive; Vertical Banded Gastroplasty (VBG); stomach stapling; overweight; malabsoption procedure; bariatric surgery; Lap; lose weigh; Weight loss surgery is not right for everyone and should be considered very carefully. ; obese; loose weight; bariatric; bmi; weight loss; gastric bypass; obesity; laparoscopic gastric banding; restrictive; Vertical Banded Gastroplasty (VBG); stomach stapling; overweight; malabsoption procedure; bariatric surgery; Lap; lose weigh; Weight loss options and approaches.