THE COMPARATIVE EFFECTS ON CARBOHYDRATE METABOLISM OF EXHAUSTING MOTIVE AND EMOTIVE RESPONSES AND EXPOSURE TO COLD

Abstract

Normal cats and kittens (apparently about 30) were killed and the tissues analyzed immediately after (1) exhaustion by swimming, (2) emotional excitement caused by a dog''s barking, or (3) exposure to cold, to which also 7 ground hogs and 3 opossums were exposed. Profound emotional excitement for short periods, and fatigue from short, periods of vigorous muscular exercise, depleted the glycogen of muscle and liver and augmented the glucose1 and lactates of the blood. Exposure to cold to the point, of inducing slight narcosis usually reduced blood glucose and lactic acid, liver and muscle glycogen, body temp, and heart rate. Maintenance of the blood sugar level is invariably associated with maintenance of body temp, within normal limits.