The dawn phenomenon is caused by a natural surge of hormones that occurs in the early morning hours. Specifically, cortisol and growth hormone signal the liver to produce more glucose.
Hormonal Triggers
Here's how it unfolds:
- Hormone Release: In the early morning, the body releases hormones like cortisol and growth hormone.
- Liver Activation: These hormones prompt the liver to increase its production of glucose.
- Glucose Increase: The increased glucose production elevates blood sugar levels, providing the body with energy it needs to wake up.
- Insulin Response: Normally, the pancreas responds by releasing insulin to counteract the rise in blood sugar and help cells use glucose for energy. This process helps keep blood sugar levels stable.
Impact on Blood Sugar
The dawn phenomenon can lead to an increase in blood sugar levels in the early morning hours.
Key Hormones
| Hormone | Function |
|---|---|
| Cortisol | A stress hormone that can increase glucose production. |
| Growth Hormone | Stimulates cell growth, and is involved in glucose production. |
Who is Affected?
While the dawn phenomenon can affect anyone, it's particularly relevant for people with diabetes, who may have difficulty regulating blood sugar levels due to insufficient insulin production or insulin resistance.
Practical Insights
- For people with diabetes, it’s important to monitor blood glucose levels.
- Work with your healthcare provider to adjust medication or lifestyle if needed to manage blood sugar fluctuations.
