Probably, because according to new research our capacity to worry evolved alongside our ability to think. So it's natural for us to worry, even about some things we can do nothing about.⁠ The new work suggests that there is an evolutionary link between our tendency to worry and our intelligence, regarded as our most important evolutionary advancement.⁠ ⁠ "We think normally of worry as being disabling," said psychiatrist Jeremy Coplan, lead author of a study published in Frontiers in Evolutionary Neuroscience. That means it's a "maladaptive trait" that should have inhibited our adaptation to a changing environment, Coplan said in a telephone interview.⁠ "So we found this strange juxtaposition of something that was supposedly disabling being linked positively with something (intelligence) that was very adaptive," he added.⁠ ⁠ _____⁠ ⁠ The study, involving 26 patients with a disabling anxiety disorder and 18 healthy volunteers, was conducted by seven scientists at five institutions. Among...