Here is an informative article with 18 tricks to hack you body and brain –and we aren’t talking extreme body modification. Some of these ideas you may have instinctively figured out by yourself, but others of them are really amazing and worth a good try. There are cures for dulling the pain of injections, toothaches, brain-freeze, and full bladders. One of the weirder science based ones that I could have never figured out myself involves pressing on the roof of your mouth with your tongue and then alternating that with pressing on your eyebrows with your fingers. This is in order to loosen nasal congestion by moving the vomer bone in your face. My face still feels all loose. Awesome!