Origin of Obesity! Back in time, prehistoric man did not have enough food and spent too much energy getting it. He usually exercised a great deal by running from predators or after his prey. Those were scarcity times. The natural instinct was, then, to eat as much as possible to keep a temporary body energetic storage, as he would never know when the next meal would be. Throughout time, man evolved and mastered his domain. He learnt how to grow plants, raise cattle, and above all, he neither had to hunt or be hunted anymore. At that moment, maybe last century, man met abundance and lack of predators. It is certain that no other species conquered these privileges. Apparently, it is the progress of our specie, but actually, it is the dawn of new era: "sedentarism and uncontrolled eating era". We submitted ourselves to a lifestyle that our body was not made for. Fire was discovered and man learnt how to cook food, and that is when we started removing fiber contents out of the diet, which we call external digestion. We also learnt the process of food refinement, which makes sugar and wheat fiberless. Thus food has no fibers. Due to great urbanization, houses got smaller, with smaller kitchens, not capable of fresh food (fruits and vegetables) storage to provide the right amount of energetic fuel for the body. Therefore, it was necessary to figure out a practical alternative to nourish people. So we came up with compact sized, hypercaloric and not perishable food. The components of this kind of food are fiberless starch and sugar, like bread, cookies, chocolate and all the food we find in the supermarket shelves. That kind of food does not stretches the stomach, consequently, it does not cause fullness sensation, so we have to eat more and more. The modern food is much easier to digest and almost all digestion is made in the duodenum. Therefore, food is absorbed into the blood, in the duodenum and the initial part of jejunum. No residues get in the terminal ileum, consequently there are no stimuli for GLP1, PYY and Oxintomodulina hormones production. Those hormones warn the brain that it is time to stop eating. In other words, no hormones, no warnings and consequently no stop eating. Human intellectual progress brought us many advantages, however, one of the greatest disadvantages is obesity. We are provided with great calorie opulence, but not enough calorie consumption.   Six Causes of Modern Obesity • Sedentarism - we are at the top of food chain, we do not have predators; • Sedentarism - we have abundance of food. All the other species live with food scarcity and they run great deal after food; • Sedentarism - we live locked in our houses, due to urban violence; • Sedentarism - technology allows us to execute our everyday tasks from home, through Internet, delivery services and so on; • We eat hypercaloric, compact sized food that do not stretch the stomach, they do not cause satiety, so we keep eating; • We eat hypercaloric food which is absorbed in the duodenum and jejunum, but the intestine starves, so it does not warn the brain to stop eating, thus we are still hungry even after a meal. In short, the modern world induces obesity; man of the future will be a severely obese sufferer. The same technology that promotes well being and increases life span, thanks to organ transplants and vaccines, will also be the cause of many deaths due to extreme obesity. It is of vital importance that we learn about this phenomenon and change immediately our alimentary and physical habits. Patient Guide  Digestive Tube  Origin of Obesity  Characteristics of Obesity BMI Calculation  Bariatric Surgery Gastric Bypass Surgery  Gastric Bypass Step by Step POST-OBESITY SURGERY Healing time and long-term success after gastric bypass surgery depend largely on your diet and exercise habits. After weight loss surgery, following our fitness and nutrition guidelines will decrease the risk of complications and increase the chance that you will be satisfied with the outcome.. POST-SURGERY