An individual who has an eating disorder along with intense thirst and wildly varying body temperatures may have a dysfunction of the medulla. hypothalamus. thalamus. pons. brainstem.

May have a dysfunction of the hypothalamus.  The following brain areas serves as the major control center of the autonomic nervous system and endocrine systems hypothalamus and the "thermostat" or nucleus that monitors blood temperature is located in the Hypothalamus.  The following is a function of the hypothalamus it involved in psychosomatic illnesses. 

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