What is the dawn phenomenon?
Dr Vimal Pahuja, Consultant Metabolist and Diabetes, Dr LH Hiranandani Hospital, Powai, Mumbai (India) - said: “This is a natural phenomenon, occurring in the early morning, when the body starts producing hormones such as cortisol, glucagon and epinephrine (adrenaline) to help the body wake up and get ready for a new day. These hormones have the effect of increasing blood sugar, helping to provide energy to the body when waking up. Especially in people with diabetes, the body cannot regulate blood sugar effectively, leading to high blood sugar levels in the early morning”.
Symptoms of the dawn phenomenon
High blood sugar in the morning (usually occurs after waking up).
Tired even after enough sleep.
Sometimes blurred vision and persistent headache.
How to manage
There are a number of approaches to dealing with dawn phenomenon, depending on whether you have type 1 or type 2 diabetes. Dr. Pahuja will help us list some steps to control the dawn phenomenon.
For type 1 diabetes
Adjusting insulin doses: Some people with diabetes may need to adjust their evening insulin doses to combat the dawn phenomenon. Taking a slow-acting insulin in the evening (such as basalin or long-acting insulin) can help maintain stable blood sugar levels overnight and reduce the early morning spike.
Additionally, if you have morning hyperglycemia, using rapid-acting insulin in the morning can also help lower your blood sugar quickly.
Continuous glucose monitoring (CGM): CGM can be used to assist in detecting high morning glucose levels and intervene promptly.
Medication changes: In some cases, changing or adjusting medications may be necessary to better control blood sugar levels.
Meal adjustments: A low-carbohydrate meal before bed can help control blood sugar levels.
For type 2 diabetes
Timing and dose adjustments: Changing the timing or dose of diabetes medications including metformin or sulfonylureas may be helpful.
Lifestyle changes: Regular exercise and weight loss can improve normal glucose control.
Monitoring: Monitoring your blood glucose levels, especially in the morning, can help you see how medications you're taking are affecting your health or detect changes in your health.
Consistent sleep schedule: Maintaining a daily sleep schedule can help control blood sugar levels.
