Diabetes
Dawn Phenomenon & Morning Sugar Spikes
Dawn Phenomenon
Many people experience higher blood sugar in the morning despite not eating overnight. This is known as the dawn phenomenon. It reflects early insulin resistance and stress hormone activity. Recognizing it prevents confusion and mismanagement.
Try This Today
Finish your last meal at least 3 hours before bedtime and keep evening snacks light or avoid them altogether. Late-night eating can trigger higher morning glucose because your liver continues releasing sugar while your body is resting.
Measure: Check fasting glucose or note morning energy levels.
Do: Finish eating at least three hours before bedtime.
Reflect: Ask whether your morning glucose reflects nighttime habits.
For Real
Is This Your Story?
A patient with prediabetes eats healthy during the day but wakes with high glucose readings. They discover late-night snacking and poor sleep are contributing factors. When dinner is moved earlier and sleep routines improve, morning glucose normalizes.
Cortisol
In the early morning hours, cortisol and growth hormone rise to prepare the body for waking. In insulin-resistant individuals, this causes glucose release from the liver without adequate insulin response.
Lab patterns often show normal daytime glucose but elevated fasting readings.
Addressing evening meals, sleep, and stress improves morning glucose control.
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