Anxiety can feel like a heavy weight that we didn’t ask to carry. Who wouldn’t love to get rid of it? But neuroscientist Wendy Suzuki wants to challenge the way we view our anxiety. In fact, her new book is called “Good Anxiety: Harnessing the Power of the Most Misunderstood Emotion.” If you’re skeptical, so was I. But Suzuki’s point is that anxiety is a natural human emotion, and it serves a purpose. We feel anxious when there’s some kind of danger: It primes our body to fight or flee from that danger, in hopes that we’ll end up better off (or alive, at least). In the same way, our modern anxieties can be a warning signal for things that are wrong, such as not getting enough rest, too much multitasking, and isolation from others. Our anxious energy alerts us so that we can change our lives for the better, …