r or faster than normal, which can trigger early awakening.
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### Blood Sugar Regulation
Your body fasts overnight while you sleep. For some people—especially those who eat light dinners or follow low-carbohydrate diets—**blood sugar levels may drop** during the night.
When this happens, the body may release **adrenaline** to stabilize glucose levels, which can cause sudden wakefulness.
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### Mental Processing
Interestingly, the brain uses sleep to process emotions and memories. During the quiet hours before dawn, the brain may become more active as it organizes thoughts and experiences from the previous day.
