Definitions for "Dawn phenomenon"
Keywords:  morning, glucose, rise, somogyi, early
An early-morning rise in blood-glucose levels, believed to be due to a delayed response in growth-hormone release.
A rise in blood sugar levels between about 4 and 8 A.M.; caused by a decrease in insulin sensitivity, in turn related to a sleep-induced increase in secretion of growth hormone.
Early morning (usually 4 am - 6 am) rise in blood sugar. Many people experience a rise in blood sugar due to the increase in levels of hormones (such as growth hormone) in the early morning.