Drugs
Alcohol
Toxins
Burns
Psoriasis
Exfoliative dermatitis
Cold infusion
Emergent deliveries
Cardiopulmonary bypass
Continuous renal replacement therapy
Hypoadrenalism (adrenal insufficiency)
Hypoglycemia
Malnutrition
Extremes of age
Impaired shivering
Inactivity
Spinal-cord transection
Neuropathies
Diabetes mellitus
Cerebrovascular accident
Subarachnoid hemorrhage
Parkinsonism
Hypothalamic dysfunction
Multiple sclerosis
Anorexia nervosa
Drugs: Intoxicants, anxiolytics, antidepressants, antimanic agents, antipsychotics, opioids, oral antihyperglycemics, beta blockers
Sepsis
Pancreatitis
Carcinomatosis
Uremia
Vascular insufficiency
Trauma