What Is A Hangover?
A hangover happens when you get intoxicated the previous night and you wake up to various physical and mental indicators that your body is in distress.
The body metabolizes alcohol before it is safely excreted from the body. It creates metabolites that contribute to making your hangover worse.
As your blood alcohol concentration (BAC) drops to zero, your body is slowly getting rid of the alcohol. However, even after your BAC returns to normal range, you might still experience the nasty signs of a hangover for approximately 24 hours.
Another factor is Acetaldehyde, a carcinogen, which is produced in the liver during alcohol metabolism. The toxicity of acetaldehyde also contributes to the hangover symptoms.