reflex is induced by the hormone angiotensin This ensures that you get less saliva in your mouth and your mouth will feel dry If you have been drinking then makes another hormone made by the adrenal glands will make your body retain water Alcohol neutralizes this hormone A consequence of this is that by drinking alcohol no longer receives a signal that adderum you've had enough to drink and therefore thirst continues to hold If your milk tea soft drinks coffee etc drinks your body sees this as food making it not easily be absorbed into your blood However you drink pure water this will have after minutes for an increase in your blood volume Drinks such as coffee regular tea cola chocolate various sports drinks etc contain methylamine and just