Naturally, there are certain limitations to our physical abilities and athletic performances. In spite of these limitations, there has been a number of cases of incredible feats performed by humans that go well beyond what most think is even possible. Take hysterical strength, for example. Also known as superhuman strength, hysterical strength is a display of extreme strength by humans (beyond what is believed to be normal) usually occurring when people are in life and death situations or during so-called excited delirium. In the state of hysterical strength, people are believed to perform some extraordinary feats such as lifting cars with bare hands. But the feats you are about to see in this post are not just about human strength. People have been known to achieve other incredible things. From a man who tried to climb Mount Everest in shorts and a teenager who survived 18 days without food and water to a man who ate a plane, these are 25 Most Unbelievable Feats Of Humans.