“…When thyroid function is reduced in animals, either by thyroidectomy or by administration of propylthiouracil, forced feeding more readily results in obesity (52). Yet, the clinically obese, according to laboratory data (53)(54), show no more evidence of thyroid disease than the non-obese. It would seem that the thyroid enters the picture merely as pacemaker; if habit dominates and does not permit adaptation to a changing rate of thyroid activity, then obesity may result.…”