Evidence suggests that ADHD brains don’t release anticipatory dopamine the same way neurotypical brains do. Reuptake—the reabsorption of the dopamine—may also happen before it makes it to a receptor. When this happens, our brains don’t “learn” that a behavior like filling out tax forms will lead to anything good. And if nothing good comes from a behavior, what’s the point of doing it? This is why it feels as though activities that are more immediately rewarding hijack our brains. When we abandon tax forms and start playing video games, we feel good, and dopamine gets released. If there’s enough dopamine to hit at least some receptors, our brain learns to prioritize video games, making it more likely that we will end up firing up the game console the next time we need to do something similarly tedious.

— How to ADHD by Jessica McCabe (35%)