@Natalia D , the Dawn phenomenon is perfectly normal. During the early hours our Circadian Rhythm system - we have a master clock in our brain’s hypothalamus , and lots of periphery ones in our organs and muscles. They govern our bodily 24 hour functions. The circadian rhythm is your body’s natural 24 hour clock. It keeps your body in a cycle of sleep at night and wakefulness during the daytime. It reminds you to eat at certain times and so forth. So in the early hours this system gears your body up for waking and activity. It does this by signalling your body to produce and deliver cortisol and growth hormones. Likely raising insulin resistance and up go your sugars ready for your muscles and other energy requiring cells to utilize the glucose that is now circulating hence the rise in blood sugars. In a healthy body, your pancreas and liver , they work as a team, will not allow your early morning blood sugars to rise much, but with someone already dealing with insulin resistance and higher than normal blood sugars becomes a challenge for your pancreas and liver tag team to manage, this can raise your blood sugars, known as the Dawn phenomenon . It can start around 3am and rise slowly. It can accelerate when you get up and go to the loo , make a cup of tea. In some people it can quickly fall, in others this DP can remain until you have a bite to eat. As
@Dax40 explains as you work to reduce your blood sugars, over time, your DP will be lowered.
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