[custom_adv] For most people, being diagnosed with any kind of illness isn't considered good news. We immediately think of all of the downsides and side effects that we will have to live with for a long time, maybe even our whole lives. [custom_adv] In some rare cases, however, there are diseases that actually provide surprising benefits that may even be considered extraordinary. [custom_adv] Yes, there are diseases out there that basically give you superpowers, but that doesn't mean there aren't any downsides. [custom_adv] For the most part, these rare and mysterious illnesses are both a blessing and a curse (mostly a curse, though). [custom_adv] Below are just a few examples of the diseases that make it possible for that guy who sits across from you to have a super-heroic alter ego. In this list, you'll discover the surprising benefits of these diseases, as well as the nasty side effects that haunt the people who have them...