What's going on when you're hungover?

Party season is now behind us. Many of us will have consumed a tipple or two, and some of us will have had a hangover. Alcohol is a very widely consumed drug. In fact, the Global Drugs Study 2018 found that 98.9% of respondents had consumed alcohol.

A hangover, defined by the Oxford English Dictionary as “a severe headache or other after-effects caused by drinking an excess of alcohol”, are known the world over, as are the acute effects thereof. In short, excessive consumption of alcohol can make you feel dreadful. But what’s really going on? Let’s break it down.

You feel dehydrated.