Balancing Sleep and Diabetes Management During Exam Season
- McMaster Diabetes Association (MDA)
- Dec 2, 2024
- 3 min read
Updated: Dec 3, 2024
By: Rhea Gupta

As we enter exam season, it’s no secret our routines and self-care habits take a hit. While we recently highlighted the importance of stress management during this time, another critical part of our health that often gets overlooked is sleep. At some point in time, we all have been guilty of last-minute cram seasons, realizing at 11 pm that we underestimated how much material there is to review. So, we make that fresh cup of coffee, push through the fatigue, and cue that all-nighter cram session. However, sleep is not a luxury. It’s a necessity, essential to help recharge our energy and ensure we give our best performance during exams. For individuals with diabetes, sleep goes beyond this passive activity of recharge. It is a powerful and important tool to help manage blood sugar levels and support overall health. These sleepless nights do more than that morning crankiness, rather it can directly impact your body’s ability to process glucose and handle your body’s demands throughout the day. Through this article, let’s explore why prioritizing sleep is essential during this stressful season.
Why is sleep crucial for diabetes?
For individuals with diabetes, sleep plays a direct role in regulating blood sugar and other factors critical for diabetes management. Poor sleep can affect factors such as the following:
Hormone level regulation: sleep regulates hormones, such as insulin and cortisol, which affect blood sugar levels (Darraj, 2023). Poor sleep can result in less insulin production and increased cortisol levels, making it even harder for insulin to decrease blood sugar levels (Darraj, 2023).
Glucose intolerance: lack of sleep can result in glucose intolerance and reduced insulin sensitivity, leading to decreases in beta-cell functions, which can impose risks in managing and controlling diabetes (Darraj, 2023).
Increased appetite: poor quality sleep can lead to less leptin and more ghrelin production, hormones that affect hunger and appetite (Yale Medicine, 2023). This results in individuals feeling more hungry, where higher frequencies of sleep disturbances have shown links to obesity, another risk factor for diabetes (Yale Medicine, 2023).
Cardiovascular risks: poor sleep duration is a risk factor for cardiovascular diseases, especially as individuals with diabetes are already more prone to these developments (Henson et al., 2024). Sleep is critical for blood pressure and heart regulation, while also controlling weight factors and metabolic processes (Henson et al., 2024).
How Does Diabetes Affect Sleep?
The effects of diabetes can also impact one’s ability to get quality rest:
Sleep Apnea: a complication often found in people with type 2 diabetes, and is associated with disrupted breathing while sleep, high blood pressure, fatigue, lower glucose tolerance, and obesity (Cauter, 2021).
Diabetic neuropathy: associated with nerve damage, especially impacting one’s legs, causing leg/foot pain making it hard to fall asleep (Diabetes UK, 2023).
Polyuria: individuals with high blood sugar levels may experience frequent urination, causing this to affect their sleep cycle (Chasens et al., 2002).
Hypoglycemia (low) or hyperglycemia (high): fluctuations in blood sugar at night can affect sleep quality and lead to morning fatigue (Diabetes UK, 2023. This can also lead to symptoms of headache and thirst (Diabetes UK, 2023).
Tips for Better Sleep with Diabetes:
Despite these concerns, small changes to routines can make a huge difference to help improve sleep quality and management of blood sugars (Diabetes UK, 2023):
Reduce screen time before bed: this can confuse your body and affect your sleep cycle
Stick to a routine: regulate your sleep cycle
Exercise: this can reduce stress and help keep blood sugar levels overnight
Avoid stimulants: such as caffeine, alcohol, heavy meals, smoking, etc.
Monitor blood sugar levels: regularly before bed
These are just a few strategies to help improve the quality of sleep for individuals with diabetes. When managing diabetes, sleep is more than getting rest, it’s about maintaining your overall health and well-being. Prioritizing sleep can lead to better blood sugar control, lower risks of complications, and enhance both mental and physical health.
This exam season, let’s prioritize creating and sticking to a routine, ensuring we focus on a simple yet powerful goal of getting a good night’s sleep!
References
Cauter, E. V. (2021, March 17). The Impact of Poor Sleep on Type 2 Diabetes. Diabetes Discoveries and Practice. https://www.niddk.nih.gov/health-information/professionals/diabetes-discoveries-practice/the-impact-of-poor-sleep-on-type-2-diabetes#:~:text=Studies%20show%20that%20many%20sleep,sleep%20will%20worsen%20the%20condition
Chasens, E. R., Umlauf, M. G., Pillion, D. J., & Wells, J. A. (2002). Nocturnal polyuria in type 2 diabetes: a symptom of obstructive sleep apnea. The Diabetes Educator, 28(3), 424-434. https://doi.org/10.1177/014572170202800312
Darraj, A. (2023). The Link Between Sleeping and Type 2 Diabetes: A Systematic Review. Cureus 15(11). https://doi.org/10.7759/cureus.48228
Diabetes UK. (2023, August 23). Sleep and diabetes. https://www.diabetes.org.uk/guide-to-diabetes/life-with-diabetes/sleep-and-diabetes
Yale Medicine. (2023, March 13). The Connection Between Sleep, Diabetes, and Obesity. https://www.yalemedicine.org/news/sleep-diabetes-and-obesity#:~:text=Leptin%20levels%20typically%20rise%20during,Obesity%20Medicine%2C%20Gastroenterology%2C%20Hepatology




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