Medically reviewed and verified by Kate Burke, MD, MHA
Estimated reading time: 0 minutes
Whether it is due to heat, humidity, or exercise, sweating is our body's way of cooling us down. As our internal temperature rises, the brain signals our sweat glands to kick into action. It can also be an emotional response, such as a reaction to a stressful event. Unfortunately for people with type 1 diabetes (T1D), sweating can happen at night. Night sweats, as they are commonly called, can be uncomfortable and disruptive. Why does this happen? What steps can you can take to prevent it? Let's explore the reasons behind this physical response.
T1D and Sweating
To start, we can look at the relationship between diabetes and sweat. People with any form of diabetes may experience excessive sweating. This can be because of a few possible reasons.
- Low Blood Sugar (Hypoglycemia): When blood sugar levels drop too low, the body responds by releasing adrenaline. Adrenaline in turn narrows blood vessels and activates sweat glands.
- Autonomic Neuropathy: This is a type of nerve damage caused by prolonged high blood sugar levels. It affects the nerves that control sweating, which can cause excessive sweating, especially in the upper body.
Click here to learn more about Type 1 Diabetes.
What are Night Sweats?
Night sweats refer to excessive sweating that occurs during sleep. For people with type 1 diabetes, night sweats often happen due to low blood sugar levels at night. But why does this happen? Insulin and some diabetes medications can lower blood sugar, potentially causing hypoglycemia at night. As mentioned earlier, your body then reacts to this drop in glucose levels by sweating.
Missing meals or not having a bedtime snack can also lead to low blood sugar levels during sleep. Physical activity, especially if done close to bedtime, can lower blood sugar overnight. Exercise forces your muscles to use sugar. Exercising too close to your bedtime may leave your body in a sugar deficit. If you have T1D, you need to work closely with your doctor to make sure any exercise program is appropriate. That includes the best time of day to work out.
Managing Night Sweats
At the risk of sounding silly: if you are having trouble with this condition, don't sweat it! There are steps you can take to manage and reduce the effects.
- Monitor Blood Sugar Levels: Regularly check your blood sugar levels before bed and during the night if necessary. This can help you identify patterns and take preventive measures.
- Adjust Insulin Dosage: Talk to your doctor about adjusting your insulin dosage or timing. Sometimes, a small change can make a big difference in preventing nighttime hypoglycemia.
- Have a Bedtime Snack: Eating a small snack before bed can help maintain blood sugar levels throughout the night. Choose a snack that combines protein and carbohydrates, like a piece of cheese and whole-grain crackers. Be sure to consult with your doctor.
- Stay Hydrated: Drink enough water throughout the day. Dehydration can make the effects of sweating worse. Avoid alcohol and caffeine as well. These can affect blood sugar levels and potentially lead to night sweats. Try to limit or avoid them completely, especially in the evening.
- Create a Comfortable Sleep Environment: Keep your bedroom cool and well-ventilated. Use light, breathable bedding and wear moisture-wicking pajamas to stay comfortable.
- Manage Stress: Stress can affect blood sugar levels and trigger sweating. Practice relaxation techniques such as deep breathing, meditation, or gentle yoga before bed.
Further Steps
Night sweats can often be managed with lifestyle adjustments. However, it's important to talk to your doctor if they continue despite taking preventive steps. Any time this symptom interferes with your ability to get a good night's sleep, it is worth discussing with a health care professional. If you are regularly experiencing low blood sugar levels at night, get in touch with your doctor immediately. They may suggest additional tests or treatments to help manage your symptoms.
Night sweats can be frustrating. Understanding the causes and taking proactive steps can help! Stay on top of your blood sugar levels, and adjust your medication regimen and bedtime routine as your doctor recommends. Be sure to check out PatientsLikeMe for more information and support!
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