Back in the day, FOMO was a survival tool. If your tribe was doing something important—hunting, gathering, forming alliances—you had to be there to stay relevant and safe. Fast forward to now, and that instinct has morphed into feeling like you need to be at every event, trying every trend, or keeping up with every social circle. But guess what? Your brain hasn’t caught up with the fact that not attending Rachel’s bottomless mimosa brunch won’t lead to exile.