If you’ve ever caught your mind spiraling at 2 a.m., you know how it can feel to have your brain working against you. But what if you could train it to be your ally instead of your adversary? In How to Make Your Brain Your Best Friend, author and neuroscientist Rachel Barr lays out a practical playbook for turning down the volume on unhelpful loops and turning up the habits that build clarity, calm, and positive momentum.

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