A patient comes in complaining that they chronically feel cold and can’t seem to get warm. You take their temperature and find that it is 35.4 C in a cool exam room (normal is 37 C). Provide three...

A patient comes in complaining that they chronically feel cold and can’t seem to get warm. You take their temperature and find that it is 35.4 C in a cool exam room (normal is 37 C). Provide three different possible explanations of what could be going wrong. These explanations should involve at least two different body systems.