What’s Behind a Hangover?
July 16, 2024
A few things you should know.
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The National Institute on Alcohol Abuse and Alcoholism notes that dehydration is a major contributor to some of the more notable symptoms of hangovers, which are a common side effect of drinking too much. The NIAAA notes that alcohol suppresses the release of the hormone vasopressin, which sends signals to the kidneys that cause them to retain fluid. Without the release of vasopressin, the need to urinate increases, leading to excessive fluid loss. Fluid loss causes mild dehydration, which is why many people experiencing hangovers feel thirsty and tired and deal with headaches the morning after drinking too much.
