Taking a bath is a popular method for dealing with a hangover. The sudden splash of cold water, which slams onto your torso, gives you a much needed jolt. This rush induces the quick production of adrenaline in the body. The adrenaline, in turn, raises your tolerance for the hangover’s effects. If you take a shower while experiencing a hangover, the headache and the heavy sensation will gradually diminish. They may even disappear if you’re pretty lucky.