Hangovers can manifest differently, with some experiencing stomach issues while others suffer from headaches. Dehydration is a common cause, and drinking water before bed or while consuming alcohol may help mitigate symptoms. Some individuals find that remedies like ibuprofen or coffee provide relief, while others prefer the "hair of the dog" approach. The severity of hangovers can also be influenced by the type of alcohol consumed and individual drinking habits. Ultimately, time is the only true cure for a hangover, as the body needs to process the acetaldehyde produced during alcohol metabolism.