Dr Amir Khan has issued a warning for people with certain health conditions as the UK experiences a heatwave with temperatures reaching up to 36°C. The Met Office has issued a red warning for extreme heat for Friday. Dr Khan, known for his appearances on ITV, shared a video on Instagram outlining five common conditions that can be worsened by hot weather.
Asthma and Lung Conditions
Dr Khan stated: "Hot weather can irritate the airways, and higher levels of pollution and pollen during warm weather can trigger symptoms. If you have asthma or COPD, make sure you're taking your preventer inhalers regularly and routinely and always carry your inhalers with you just in case."
Heart Disease and High Blood Pressure
He explained: "When we're hot, our blood vessels widen to help us cool down. This can cause blood pressure to drop, making some people feel dizzy, faint, or unwell. Your heart also has to work harder to keep your body cool. Stay well hydrated, avoid strenuous activity during the hottest part of the day, and take things a little slower than usual."
Diabetes
"Did you know, heat can affect blood sugar levels, even alter how insulin is absorbed," he said. "On top of that, dehydration can make glucose levels harder to control. Drink plenty of fluids, monitor your blood sugars more closely than you normally do and store insulin according to the manufacturer's instructions - don't let it get too hot."
Kidney Disease
Dr Khan explained: "Your kidneys rely on a good supply of fluid to work properly. When you become dehydrated through sweating, kidney function can worsen. This is particularly important if you're older or taking medicines such as water tablets. Keep sipping water throughout the day, rather than waiting until you feel thirsty."
Migraines and Headaches
He noted: "Heat and dehydration are major headache triggers. If you're prone to migraines, try to stay cool. Drink plenty of water, and don't skip meals as low blood sugar can also contribute on top of that heat."
Medications and Heat
Dr Khan added: "Certain medications can make you feel more vulnerable to the heat as well, including water tablets, some antidepressants, and some antihistamines. The key message is stay hydrated, stay in the shade during the hottest part of the day, always wear your SPF, keep your home cool, and check in on older relatives, neighbours, and anyone with long-term health conditions."
