Inclusion Criteria:  Age 18-65 Diabetes Mellitus type 2 HBA1C < or= 9 BMI >35 eligible for bariatric surgery (after a hospital bariatric committee) Advanced diarem>6 Signed an informed consent -  Exclusion Criteria:  HBA1C above 9 Prior bariatric surgery in the past 6 years secondary diabetes steroid therapy uncontrolled hypertension(>180/100) Arythmia: paroxysmal tachyarythmia or high degree AV-Block