BEDFORD – As temperatures soar across much of the U.S. and Europe, medical professionals are urging people with diabetes to take extra precautions. According to Diabetes Voice editor Elizabeth Snouffer, extreme heat can interfere with glucose control and trigger serious complications for those managing type 1 or type 2 diabetes.
Image found from original article: https://diabetesvoice.org/en/living-with-diabetes/extreme-heat-and-diabetes/.
People with diabetes may have impaired sweating due to nerve damage, which reduces the body’s ability to cool down. This increases the risk of heat exhaustion or even heat stroke. Compounding the danger, dehydration from heat and exertion can elevate blood glucose levels—and elevated glucose levels can in turn cause frequent urination, leading to more fluid loss.
Even short periods in the sun or humid environments can lead to blood sugar fluctuations. Snouffer emphasizes that individuals should monitor their levels more often in hot weather, especially during physical activity or outdoor exposure.
While summer temperatures alone are cause for caution, it’s the heat index—how temperature feels when humidity is factored in—that truly matters. Health professionals urge people with diabetes to limit outdoor time once the heat index hits 80°F (26°C) or higher. In direct sunlight, that can feel like 95°F or more.
Snouffer recommends the following for anyone with diabetes during periods of extreme heat:
- Hydrate consistently. Drink water regularly throughout the day, not just when thirsty. Avoid alcohol, coffee, and sugary drinks.
- Test often. Heat can affect insulin sensitivity. Blood sugar should be monitored more frequently, especially around physical activity.
- Adjust treatment if needed. Work with your healthcare provider to temporarily modify insulin or food intake during hot weather.
- Protect skin and feet. Wear sunscreen and never go barefoot outside—sunburn and foot injuries can worsen glucose control.
- Dress smart and stay cool. Use light-colored, breathable clothing. If you don’t have air conditioning at home, visit cooling centers or public buildings.
- Know both risks. Heat can cause both hypoglycemia and hyperglycemia. Be alert to symptoms of each and seek medical attention if needed.
For more information, visit www.diabetesvoice.org.
