Most of us know the feeling after enjoying a night out with friends—maybe you enjoyed it a little too much. The headache, nausea, the overall feeling of “Can today be canceled?” Hangovers are the body’s way of reminding us about the hazards of overindulgence. It makes sense when you break down the science of it all. The symptoms that we experience begin after blood alcohol levels start to fall. In fact, according to some experts, the worst symptoms occur when levels reach zero.

Most of us know the feeling after enjoying a night out with friends—maybe you enjoyed it a little too much. The headache, nausea, the overall feeling of “Can today be canceled?” Hangovers are the body’s way of reminding us about the hazards of overindulgence. It makes sense when you break down the science of it all. The symptoms that we experience begin after blood alcohol levels start to fall. In fact, according to some experts, the worst symptoms occur when levels reach zero.