A hangover is the body's reaction to alcohol poisoning and withdrawal. It starts from eight to twelve hours after your last drink. The severity may vary from one person to the next, but, fundamentally, it's based on how much you consumed. The symptoms might be as mild as thirst and fatigue, or as acute as headache, depression, nausea, and vomiting.
There are few things you can do to cure a hangover. Time and water are your best friends at that stage, but there are some measures you can take to prevent a hangover (besides not drinking as much).
Before you start drinking, eat something high in fat. It will delay absorption of the alcohol.
While you're drinking, drink a glass of water between each glass of wine. It will keep you hydrated and minimize intoxication.
While you're drinking, don't be afraid to snack.
Before you go to bed, eat something salty to replenish what the alcohol has flushed out of your body, and then drink more water.
Heavy drinking causes brain shrinkage. Overindulging has more lasting effects than hangovers. The brain shrinks as a natural part of aging, but excess alcohol speeds it up and causes damage to the brain's frontal lobe, the part that controls cognitive functions.