From what I've experience if you have a lot of adrenal stress (can be from life, staying up late, lifting really heavy a lot, etc.) your mineralocorticoids probably get thrown out of whack b/c high production stress for adrenaline and glucocorticoids like cortisol take priority. Thus, decreased output of hormones like aldosterone (mineralocorticoids) which regulate K/Na and water reabsorption.
This leads to frequent urination and "unquenchable" thrist.
The other guess I would probably say is something along the lines of hypothalmic or anterior pituitary dysfunction along the same lines. Antidiuretic hormone would probably be the other.... but that would more involve LOTS of urination (aka diabetes insipidus..).
Hypothalamus regulates thirst so if anything in the HPA axis (hypothalamus, pituitary, adrenal) gets jacked up then there's gonna be problems
Last edited by Steven Low; 08-22-2009 at 11:24 PM.