Albeit not as common as a glass of water and some ibuprofen, an oxygen bar is a way to really clear your head, literally. Regular air is typically saturated with twenty-ish percent oxygen, but oxygen bars tend to fill the air with anywhere from eighty to ninety percent oxygen. With this intake your body's metabolism can potentially be sped up quite a bit and the toxins in your system broken down that much faster, thus making you feel as if you had never had a drop of alcohol. Why It's Inventive: Oxygen bars are rarely seen, especially in the United States. They may exist in a lot of underground spots over here, but they are not common amongst us "regulars." Honestly, this is one of the most inventive ideas due to its interesting delivery (that being a bar that provides adjusted oxygen to help rid the horrendous feelings of a hangover). I can't say I'd ever recommend trying to find an oxygen bar regularly, especially when hungover (that will definitely make it worse), but if you have knowledge of one that might be near then definitely give it a shot. And then be sure to let me know about it immediately.
