Anxiety can be a bit like a visit from a distant relative who turns up at your doorstep unannounced. For most, that visit could last a few hours, days, or maybe even a week or two—but for others, anxiety makes itself comfortable and puts down roots. When that’s the case, anxiety can feel like a constant companion. It’s there when you’re grocery shopping or getting ready to go out with friends; it’s always in your ear nagging at you to think about uncertainties, dangers, and all the things that could go wrong.