The part of the brain that is heavily involved in survival activities is also involved in mediating appetite. This means that trauma or stress can dysregulate the neuro-physiological networks involved in the regulation of appetite, leading to maladaptation. For example, acutely stress out a lab rat and it becomes hypophagic (its appetite is surpressed). Chronically stress out the same rat (please don't try this at home?) and it becomes hyperphagic(its appetite is stimulated). Although this process is also applicable to humans, it is far from straightforward as humans are extremely complex. There are several factors that can mediate whether Continue reading