If you have ever had a hangover, you know that the following morning you found yourself morning-after exhaustion, complete lack of concentration, headaches, nausea, and overall misery. There is also the added fact that it is, simply, impossible to get rid of a hangover once you already have one.
The unfortunate truth about a hangover is that the alcohol you took in during the night will still be inside you, even if you are already suffering from a hangover. This simply isn't how our bodies work, and the next morning you will begin to feel these terrible symptoms without even realizing what's actually happened.
The fact is, you effectively "catch" a cold or flu virus with the alcohol in your system before it can Even begin to take hold, thanks to how temporarily incapacitating it is. This is why hangovers can be fatal and why doctors still can't find a cure.
Try, however, to enjoy a fun night with friends this week, and ignore the "issue" if you do have a problem the morning after.
One popular misconception about hangovers is that mixing Diet Drinks or soda with water causes them to be less severe. While this is technically correct, you do not want to do this mix, even with the "yeast-free" option of an All Day Energy drink, because of the risk of dehydration. The reason for this is that a lack of water (due to the lack of properly-measured, large doses of alcohol) makes your vomiting and diarrhea more likely, as well as dehydrating yourself in as little as a few hours after the "all-you-can-drink" session. Your best bet is to aim for water, even if you plan on having another drink the next morning.
Second, if you are experiencing dehydration, the best thing to do is to rehydrate yourself with water and electrolytes. This will help you get back to basic Daily Drinking Strength levels. Of course, you will want to avoid any medications that can make you drowsy and assist in this task. Stimulant medications and certain antidepressants should be avoided, as well as medications for heart, asthma, and other conditions. If you do not have access to water or electrolyte supplements, minor supplementation with potassium will be useful to rehydrate your body.
Third, you will also need to drink lots of water if you plan on being out for the night. In addition to replenishing fluids that might be lost from sweating and blushing, as well as helping the body rehydrate, the water will help cool your body as effectively as possible. On the plus side, with drinking large amounts of water, you are essentially eliminating the chance of dehydration.
Finally, you should drink alcohol with greatly reduced amounts of water to prevent the nausea and vomiting that often comes with heavy drinking.
Again, this entire regimen of breaking yourself in to Daily Drinking Strength levels, drinking lots of water, and drinking alcohol with reduced amounts of water (and electrolyte replacement of any water that you might have lost) is an absolute must before, during, and after you decide to forgo alcohol for the day.