Why do you always have trouble sleeping at 2 a.m., feeling like your brain is constantly popping up all kinds of things that need your attention? Many people think it's too much stress, but it's actually more like your brain is hosting a 24-hour nonstop "automatic commentary machine," continuously thinking about recent events and possible future scenarios. The problem is, you can never truly turn off this machine because thinking is inherently the brain's job. But most people's insomnia isn't caused by the automatic commentary machine talking; it's because you start to join the commentary, analyze together, and make decisions together. So one thought leads to another, one question leads to another, forming an endless loop. The truly effective method isn't to make it shut up but to make it close the loop. When that voice appears again, tell yourself: I know this problem exists, but I can't solve it right now, and I don't need to solve it now. Leave tomorrow's matters for tomorrow's self to handle, and future issues for future information processing. Many people with insomnia aren't sleeping; they're working overtime on themselves at 2 a.m. When you allow a problem to temporarily have no answer, your brain will stop searching, and the automatic commentary machine will gradually lose its reason to keep playing.