Color Dictates Hangover Severity

Alcoholism: Clinical and Experimental Research finds that lighter colored spirits (e.g. vodka) may cause lesser hangovers than darker drinks (e.g. bourbon). Many drinks contain byproducts of fermentation called congeners which in large doses can have toxic effects ... darker distilled drinks and wines generally have more congeners vs. lighter ones (e.g. bourbon has 37 times more than vodka).