A how weak life mode leads to diseases?

 As in children's , and in adults weak life mode as often sitting for computer leading to weight rising and displaying an other symptoms as not tied with hypodynamic  , its happening by a most interesting mechanisms.

 As for example a long sitting in one pose as for computer, before TV, reading book leading to narrowing of blood vessels, carrying an  arterial blood to brain and venous blood from brain to heart. So as this is leading to decrease  blood inflow to brain,   and oxygen starving, thus brain give sign for heart is increase pumping of blood. And ,  its causing increasing frequency heart shortening and blood pressure, that partially , but not a full compensates oxygen failure. And in conditions  of   partially oxygen failure energy for brain transfers on anaerobe glycolysis , that lowering needing in oxygen, but faster increasing glucose absorption. And , here a brain part without a glucose for brain, calling hypothalamus, increasing manufacturing hormone glucagon, and glucagon begins stimulates a thrust to sweet food and increasing splitting for stocks a glycogen in liver. That is leading to rising level of glucose in blood, that is benefit from one side, so as brain needing in energy, but from an other is and harmful, so as increasing glucose level in blood stimulates insulin emission. And a most often and higher rising glucose level in blood, thus a more happens jumps of insulin. And how you are informed, where is much insulin, and here obesity staying, and much other metabolic problems. And,  importance still moment:oxygen failure in brain symbolizes for organism about a needing lowering physical activity, that  keeping having reserves for supporting brain activity and not direct a viscous blood in muscles.And , so as in brain s children ,which less moving , and sitting many times at office,  as of failure mobility are symptoms having ,as not having reasons, but results of deep physiologic mechanisms attaching for all organism as heart  beating fast, hypertension, headaches, hard in concentrate attention as all of these caused of abundant lactate is milk acid, accumulating in brain, which support an easy chronic inflammation. Also,  appetite increasing, as especially on sweets, as enduring a chronic energy deficit, is a most needing in carbohydrates and in completion for an all are energy saving   signs of brain leading ,that a human stopping staying activity.  Thus, a satisfaction for needing as hungry brain, organism launching for changes cascade, which leading to a string wishes to eat  many  sweets, fatigue, weak life mode and different cardiovascular and neurologic symptoms. And,   we are in vicious circle , and now to add still a fact, with a growing for obesity a moisture ,gait of human later is worsening and in top part of neck and spine displaying hump, which is just increasing this vicious circle for narrowing vessels  in neck region.      Now   we are understanding  ,  that a hard overestimate a big positive effect of physical activity on children s development and on the human feeling in common.