Luisa Dillner, guardian.co.uk, Updated: April 19, 2013 13:09 IST
If you swear by a hair of the dog, bananas, green tea or aspirin, you are deluding yourself. The best cure is 24 hours curled up under the duvet.
In case you have never had a hangover - and a study from Boston University found that 25-30% of people may be resistant to them - the classic symptoms include a pounding headache, nausea, exhaustion, thirst and dizziness. If it is particularly bad, you will be sweaty, your hands will shake and your pulse will race.
Hangovers usually start within a few hours of stopping drinking (which is not a reason to continue drinking as alcohol poisoning is more dangerous than a hangover). Alcohol's social lubrication comes at a cost. It dehydrates you and increases the amount of urine produced: four drinks will make you produce up to a litre of urine over several hours. It can irritate the stomach and make it produce more acid, which can cause pain or give you heartburn.
Alcohol also disrupts your circadian rhythms, so although you may fall asleep quickly, you will wake up sooner than normal and feel somewhat jetlagged. It can reduce your blood sugar levels and make you feel hungry and sick.
There are more cures touted for hangovers than there are alcoholic drinks to give you one in the first place. However, according to a systematic review published in the BMJ, which considered the results of all existing studies, there is no evidence to show that any of them work. But since this won't stop you trying, what are the best ones to opt for?