Everybody is at least a little scared of turning 40. Well, maybe not everybody, but the conventional wisdom is that many people stare down their fifth decade with a touch of dread, Business Insider's Emily Stewart writes. As millennials approach the milestone, things look a bit different than they did when their baby-boomer parents reached it and declared themselves "over the hill." Forty is supposedly the new 30. The start of middle age no longer means sending your kids off to college, getting a divorce, or buying yourself a Corvette. The modern 40 means having toddlers running around, buying your first home, and, at last, catching up on retirement savings. Or looking around and wondering whether some of those life touchpoints passed you by. Forty is an arbitrary number, and there's nothing particularly horrifying about it. Nevertheless, for a lot of people, it's terrifying. Head to the link in our bio to read about why middle age is even scarier for millennials than it was for th...