Renin‐Aldosterone Axis in Ethanol Intoxication and Hangover

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Abstract
The renin-aldosterone system was studied in human volunteers during ethanol intoxication and hangover. Plasma renin activity increased more than 100%, when 1.5 - 2.3 g ethanol per kg body weight was ingested over a three hour period. During hangover the increase even exceeded 200%. Plasma aldosterone concentration decreased during ethanol intoxication, but increased greatly during hangover. It is suggested that the stimulation of the renin-aldosterone axis during ethanol intoxication and hangover is due to dehydration and increased activity of the sympathetic nervous system.