<prompt> Nonshivering thermogenesis in adults is due to:Thyroid hormoneBrown fat between the shouldersNoradrenalineMuscle metabolism  <response>: Thyroid hormone Increases the BMR which is responsible for Non-shivering thermogenesis in adults. In children Infants Brown fat is responsible for thermogenesis. Shivering thermogenesis is by muscle metabolism, heat is produced by muscle contraction. 