If you've had a big night out, you would have no doubt found yourself waking up the next morning feeling like death.
This may not happen every time, though. One night may leave you in a horrible state, whilst others leave you ready for the day ahead.
So why do you feel hungover some mornings, but not on others?
It may, in fact, be the actual alcohol you're drinking.
Every kind of alcohol contains ethanol, but it is actually the extra ingredients in the drink that cause the hangovers.
Yoko Inoue, founder of superfood cafe Shokuiku, says that it could be things like sugar and preservatives that cause you to feel so rotten the day after.
“When we digest alcohol, the body has to convert it to acetaldehyde. Acetaldehyde can be a burden in the system and cause unpleasant symptoms.
“Vodka has the least ‘hangover-causing’ toxins in them, especially congeners compared to other dark liquors like scotch and whisky. So when selecting a drink, choose cleaner options and space out drinks with extra glasses of water.”
There can sometimes be a bit too much methanol in wines which, like ethanol, is a type of alcohol but hits you a lot harder according to Roger Corder, author of The Wine Diet.
“It just washes round in your body until it is eventually converted to formaldehyde and formic acid, which are neurotoxins.
“These will make you feel poorly. Methanol is deemed safe if below 200mg a litre. But sometimes it’s over that level.”
So how do you avoid feeling so wretched the following day?
Experts advise eating a lot of greens like kale and broccoli throughout the day as well as citrus fruits such as lemons.
Good luck, everyone!