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The Somogyi Effect. Symptoms of Dawn Phenomenon and Somogyi Effect. 5 min read. For people who have diabetes, the Somogyi effect and the dawn phenomenon both cause higher blood...
The dawn phenomenon occurs due to natural hormonal changes in the early morning that increase insulin resistance, while the Somogyi effect is a rebound response to low blood glucose levels during the night.
Both the Dawn Phenomenon and the Somogyi Effect are common conditions experienced by people who have diabetes, especially insulin-dependent diabetes. Although the conditions result in the same outcome, high blood sugar levels in the morning, they have vastly different causes.
The dawn phenomenon is an early-morning rise in blood sugar, also called blood glucose, in people with diabetes. The dawn phenomenon leads to high levels of blood sugar, a condition called hyperglycemia. It usually happens between 4 a.m. and 8 a.m. The cause of the dawn phenomenon isn't clear.
Key Differences That Set Them Apart: Somogyi Effect vs Dawn Phenomenon. The Somogyi effect is characterized by a rebound spike in blood sugar levels following episodes of hypoglycemia. This phenomenon occurs when blood sugar levels drop too low, triggering a counterregulatory hormonal response.
The “dawn phenomenon” is a term used to describe hyperglycemia or an increase in the amount of insulin needed to maintain normoglycemia, occurring in the absence of antecedent hypoglycemia or waning insulin levels, during the early morning hours.
The Somogyi effect is different from the dawn phenomenon: The former results from nocturnal hypoglycemia, which is more common in insulin users, while the latter is a natural rise in blood sugar related to circadian rhythm and affects a broader population.
More than 30 years ago in Diabetes Care, Schmidt et al. (1) defined “dawn phenomenon,” the night-to-morning elevation of blood glucose (BG) before and, to a larger extent, after breakfast in subjects with type 1 diabetes (T1D).
Understanding and differentiating between the dawn phenomenon and the Somogyi effect become critical in the optimal management of diabetes. In this article, we shall compare these two phenomena by looking at their definitions, causes, epidemiology, diagnosis, and treatment.
The dawn phenomenon and the Somogyi effect cause high blood sugar levels, especially in the morning before breakfast, in people who have diabetes. Dawn phenomenon The dawn phenomenon is a normal rise in blood sugar as a person's body prepares to wake up.