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Waking Up Early With Your Mind Racing? This Is Why
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152 views4likes43thesleepteacherOriginal Release: 2026-05-12

The Zeigarnik effect causes unfinished tasks to remain mentally active, which keeps the stress response system (HPA axis) slightly activated and releases alerting hormones like cortisol; combined with the body's natural early morning cortisol surge, this creates lighter sleep and makes unfinished tasks more likely to capture attention upon waking, which is why 4am is typically the worst time to try solving problems.

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