Human beings are built for adversity. Probably all extant species are, or they wouldn’t still be extant. But we humans in particular—lacking claws, fur, fangs, etc.—have needed the evolutionary edge of being designed for hard times.
Almost every great book or movie is about adversity. Moby Dick, War and Peace, The Hangover. The whole concept of “story,” of three-act structure, is about a protagonist confronting adversity. As Billy Wilder used to say, “Act One, get your hero up a tree; Act Two, throw stones at him; Act Three, get him down out of the tree.” Or Kurt Vonnegut: all stories boil down to three words, “Man in hole.”