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Hypoglycaemia during sleep time

by IBD Medical on June 27, 2023
Hyperglycaemia during sleep time| Diabetes 101|IBD Medical

Hypoglycaemia, also known as low blood sugar, is a condition characterised by a decrease in blood glucose levels below normal levels. While hypoglycaemia can occur at any time of the day, experiencing it during sleep can be particularly concerning due to the potential risks and challenges associated with detecting and managing the condition during periods of unconsciousness.

During sleep, the body's energy demands decrease, and various physiological processes, including glucose metabolism, adjust accordingly. However, for individuals with certain medical conditions such as diabetes or insulinoma, the mechanisms regulating blood sugar levels can become disrupted, leading to hypoglycemia during sleep. 

There are several factors that can contribute to nocturnal hypoglycaemia. One common cause is the administration of insulin or other medications that can cause blood sugar levels to drop overnight. Additionally, irregular meal schedules, excessive physical activity before bedtime, or alcohol consumption in the evening can also contribute to nocturnal hypoglycaemia.

Detecting hypoglycaemia during sleep can be challenging since the typical symptoms, such as sweating, shakiness, and confusion, may not be noticeable when a person is unconscious. However, there are signs that can indicate the occurrence of nocturnal hypoglycaemia, including waking up with a headache, having frequent nightmares or vivid dreams, experiencing restless sleep, or feeling excessively tired upon awakening.

To manage hypoglycaemia during sleep, it is crucial for individuals at risk to take preventive measures. This includes following a consistent meal schedule, avoiding excessive alcohol consumption, and discussing medication adjustments with their healthcare provider. For people with diabetes, continuous glucose monitoring (CGM) systems can be beneficial as they provide real-time glucose readings and can alert both the person and their caregiver of any significant glucose fluctuations during sleep.

In cases where nocturnal hypoglycaemia is recurrent and problematic, healthcare providers may recommend adjusting medication regimens or exploring alternative treatment options. For instance, using long-acting insulin formulations or insulin pumps that can deliver precise doses throughout the night may help prevent hypoglycaemic episodes. In some cases, eating a small snack before bedtime can also help stabilise blood sugar levels during sleep. If a person experiences frequent hypoglycaemia during sleep, it is important to consult a healthcare professional for proper evaluation and guidance. They can perform diagnostic tests, review medication regimens, and provide personalised recommendations to manage the condition effectively.

Experiencing hypoglycaemia during sleep can pose unique challenges due to the lack of awareness and the potential risks associated with unconsciousness. Preventive measures such as maintaining a consistent meal schedule, monitoring blood glucose levels, and discussing medication adjustments with a healthcare provider can help manage and minimise the occurrence of nocturnal hypoglycaemia. It is important for individuals at risk to be vigilant, seek medical advice, and take proactive steps to maintain stable blood sugar levels throughout the night.



Kelsie Patterson courageously faced her own diagnosis of type 1 diabetes with determination and drive, pushing her to pursue a multi-disiplinary approach to become a Registered Dietitian, Certified Diabetes Care & Educator Specialist, and Certified Personal Trainer. Her passion for helping others motivated her to start "The Diabetes Dietitian" where she works directly with people managing type 1 diabetes to gain control over their blood sugars in order to achieve any life goals.


Remember, it's important to personalise your routine based on your specific needs and consult with your healthcare provider or a registered dietitian for individualised advice on managing diabetes.
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