What causes hangovers?

www.sciencedaily.com Bourbon Versus Vodka: Bourbon Hurts More the Next Day, Due to Byproducts of Fermenting Process ScienceDaily (Dec. 18, 2009) — Many alcoholic beverages contain byproducts of the materials used in the fermenting process. These byproducts are called “congeners,” complex organic molecules with toxic effects including acetone, acetaldehyde, fusel oil, tannins, and furfural. Bourbon has 37 times the amount of congeners that vodka has. A new study has found that while drinking a lot of bourbon can cause a worse hangover than drinking a lot of vodka, impairment in people’s next-day task performance is about the same for both beverages. See Also: Health & Medicine * Sleep Disorder Research * Workplace Health * Birth Control Mind & Brain * Alcoholism * Sleep Disorders * Addiction Reference * Blood alcohol content * Drunkenness * Detox * Alcoholism Results will be published in the March 2010 issue of Alcoholism: Clinical & Experimental Research. “While the toxic chemicals called congeners could be poisonous in large amounts, they occur in very small amounts in alcoholic beverages,” explained Damaris J. Rohsenow, professor of community health at the Center for Alcohol and Addiction Studies at Brown University. “There are far more of them in the darker distilled beverages and wines than in the lighter colored ones. While the alcohol alone is enough to make many people feel sick the next day, these toxic natural substances can add to the ill effects as our body …
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