10. It can Help Cure a Hangover More benefits of a sauna include hangover help. Let’s be clear, there is no real cure for a hangover (ugh, we know). But there are things you can do to help alleviate the hangover symptoms and speed up the recovery process. Sweating it out in a sauna can help rid your body of all the grossness from last night’s booze-fest. That said, just be sure to properly hydrate along the way. While a good sweat can help, being dehydrated could hurt you and make your symptoms worse.