Friday, July 25, 2025 Excessive Heat and Asthma: Understanding the Risks and How to Stay Safe Summers in Oklahoma and across the Southern United States often bring extreme heat and stifling humidity. For individuals with asthma, these high temperatures and high heat index days are more than just uncomfortable – they can pose serious risks to respiratory health. In this post, we’ll explain how sweltering weather affects people with asthma and provide five actionable tips for minimizing asthma triggers during extreme heat. How High Temperatures Affect Asthma and Breathing Extreme temperature – especially heat – is a well-documented trigger for asthma. When you breathe in very hot air, it can cause the airways to narrow and tighten, making it harder to breathe. Humidity, which increases the heat index, can further worsen breathing by creating heavier air and promoting allergen growth. Dehydration and heat-related stress also increase the risk of asthma flare-ups by drying out airways and increasing inflammation. Heat, Air Quality, and Asthma Triggers Extreme heat often leads to poor air quality due to ground-level ozone and stagnant air. These pollutants can inflame airways and trigger asthma attacks. In Oklahoma, the combination of heat, poor air quality, and allergens like mold and pollen make summer a particularly hazardous time for people with asthma. 5 Tips to Minimize Asthma Triggers During Extreme Heat 1. Stay Cool in Air-Conditioned Environments: Spend time in air-conditioned spaces with filtered air during peak heat hours. 2. Drink Plenty of Fluids: Hydration helps maintain airway moisture and overall lung function. 3. Monitor Pollen, Mold, and Air Quality and Limit Outdoor Exercise: Check the Pollen and Mold Report and Air Quality Index (AQI) and avoid outdoor exertion on poor air quality days and when pollen and mold levels are high. 4. Stick to Your Asthma Action Plan and Medications: Take prescribed medications regularly and carry your rescue inhaler. (Protect medications from extreme heat, too – high temperatures can reduce efficacy and possibly affect proper device function.) 5. Reduce Exposure to Other Triggers: Avoid smoke, allergens, and other environmental pollutants during heat waves. Conclusion Extreme heat and high humidity can significantly worsen asthma symptoms, but with the right precautions, the risks can be managed. By staying cool, hydrated, informed, and prepared, individuals with asthma can navigate even the hottest days with greater safety and peace of mind. References American Lung Association – Extreme Heat and Lung Health Centers for Disease Control and Prevention – Heat and Asthma Asthma and Allergy Foundation of America – Managing Asthma in the Heat Oklahoma Department of Environmental Quality – Ozone Alert Program Oklahoma Allergy & Asthma Clinic – Pollen Count and Heat Safety AirNow.gov – Air Quality Index Monitoring American Academy of Allergy, Asthma & Immunology – Humidity and Allergens State of the Air Report – American Lung Association Previous Article: Alpha-gal Syndrome: How a Tick Bite May Trigger a Life-changing Allergy Next Article: Back to School Prep for Kids with Asthma & Allergies Related Blogs Saharan Dust: What Allergy and Asthma Patients Need to Know Every year, millions of tons of dust from the Sahara Desert travel thousands of miles across the Atlantic Ocean. While much of this dust settles over the Caribbean and southeastern United States, weather patterns can occasionally carry it farther... How to Spot and Prevent Common Bug Bites and Stings in Oklahoma Summer in Oklahoma means lake days, backyard cookouts, ballgames, hiking, and yard work — and a lot more time sharing the outdoors with mosquitoes, wasps, bees, fire ants, spiders, and ticks. Most bites and stings are simply... Surviving Summertime Allergies As summer gets into full swing, the types of allergens in the air change — and a lot of Oklahomans feel it. The tree pollen that dominates late winter and spring tapers off around late May to early June, and grasses... Return to Blogs