06/24/2026
When the external world goes quiet, your brain’s Default Mode Network (DMN) steps up to fill the silence. Without daytime tasks to distract you, your mind naturally turns inward to process unresolved thoughts, future to-do lists, and lingering emotions.
If you are carrying stress into the evening, your brain can mistake this sudden quiet for a vulnerability, keeping you on high alert.
Want to know how this nighttime alertness affects your actual sleep quality? Tune into tomorrow’s post where we break down the biology of rest. 🌙