sasa said:I have read that if you undereating and overexercise you can gain weight right??, but in this case why anorectic models or anorectic are so thin why they don't gain...they starving, they don't eat?? Just what the principle is..
Usually, anorexic persons have gone past the body's 'guard fat stores, lean times coming' routine that triggers to an 'on-going far below metabolic needs calorie intake'. Any starving person will a) take off all non-essential metabolic tissue (muscle) b) use up all fat stores c) begin to cannibalize essential but non-CNS tissue (organ fat & tissues, bones) d) die of metabolite imbalance caused by advanced starvation. What causes the 'gain weight' on 'undereat/overexercise' is essentially an variation of yo-yo dieting, not anorexia. Muscle disappears, taking with it the necessity of fueling, but the diet is ACTUALLY varying from under-eating to maintenance to possibly over-maintenance calories as the metabolic tissue is cannibalized and the body swings from catabolic to anabolic states due to exercise and varying fueling. No 'true' anorexic will ever binge or take a 'cheat' meal, or if they do they will usually vomit or use laxatives to remove the calories, making their disorder much closer to the definition of 'bulimerexia', which will still starve a person to death.