Diabetes & Heat: Management Tips
Heat Exhaustion: Diabetes Increases Risk,Know the Signs
Updated June 7,2025
Individuals with diabetes are more susceptible to heat exhaustion as their bodies frequently enough struggle to cool down effectively. This is primarily due to a reduced ability to sweat, a critical mechanism for regulating body temperature.
Heat exhaustion occurs when the body cannot cool itself adequately after exposure to high temperatures, humidity, or strenuous activity. Recognizing the symptoms is crucial to prevent the condition from escalating to heatstroke.
Aimée José, a diabetes coach, explained that managing blood sugar levels is not the only concern. Neuropathy, a common complication of diabetes, can impair sweating. Elevated blood sugar further exacerbates dehydration, making it considerably harder for the body to regulate its temperature.
Common symptoms of heat exhaustion include heavy sweating, weakness, dizziness, nausea, rapid pulse, headache, cool and clammy skin, and muscle cramps.
If you or someone you know experiences these symptoms, move to a shaded area, drink hydrating fluids, and apply cool cloths or cold packs. As these symptoms can mimic low blood sugar, it’s meaningful to check blood sugar levels and consume a snack if levels are low.
If left untreated, heat exhaustion can quickly progress to heatstroke, characterized by a dangerously high body temperature, around 106 degrees fahrenheit.
“Don’t wait, as heat exhaustion can easily lead to other dangerous issues, like diabetic ketoacidosis [DKA],” José saeid.
José advises that signs of heat exhaustion or heatstroke in a person with diabetes should be treated as an emergency, requiring immediate medical attention. Prompt action can prevent severe complications.
What’s next
Stay informed about the risks of heat exhaustion and diabetes, and take proactive steps to stay cool and hydrated during hot weather. Consult with your healthcare provider for personalized advice on managing your condition in warm environments.