After gastric bypass surgery, the so-called incretin effect occurs due to a lack of food in the initial section of the small intestine. This leads to the rapid production of certain biologically active hormones produced by the cells of the small intestine. They eliminate insensitivity to their own insulin. By a similar principle, high blood pressure during weight loss is eliminated. This is due to the stabilization of the level of the hormone, which regulates the state of the vascular wall responsible for pressure. After weight loss surgery, other diseases go away and the blood composition improves, the level of "good" cholesterol rises