Hot Weather, COPD & Asthma: Why Summer Can Make Breathing More Difficult

When people think about breathing problems, winter is often the first season that comes to mind. But for many individuals living with COPD or Asthma, hot weather can be just as challenging — and sometimes even worse. High temperatures, humidity, pollution, pollen, and dry air can all place extra stress on the respiratory system. During heatwaves, many people notice increased breathlessness, chest tightness, fatigue, coughing, or excess mucus build-up. At Crystal Salt Cave, we often hear clients say: “I thought warm weather would help my breathing… but I actually feel heavier and more congested.” There is a reason for that. Why Hot Weather Affects Breathing 1. Hot Air Can Irritate the Airways Very warm air can feel “heavy” to breathe. For people with sensitive lungs, heat may irritate already inflamed airways, making them feel tighter or more reactive. This can lead to: Wheezing Shortness of breath Dry coughing Chest discomfort Feeling unable to take a deep breath For asthma sufferers, heat may trigger airway narrowing. For COPD sufferers, the lungs may work harder to exchange oxygen efficiently. Humidity Makes It Harder to Breathe Humidity plays a major role during summer. When the air is humid, it contains more moisture. This makes the air feel thicker and heavier, forcing the respiratory muscles to work harder. People with COPD often report: Increased fatigue Faster breathing Feeling “air hungry” Difficulty walking or climbing stairs during humid days At the same time, excessive dryness from air conditioning can also irritate the airways and dry mucus, making it harder to clear naturally. Summer Pollution & Pollen Can Increase Symptoms Hot weather often increases: Air pollution Smog Dust particles Grass pollen Tree pollen Mould spores These airborne irritants may worsen: Asthma flare-ups Sinus congestion Persistent coughing Mucus production Airway inflammation Even indoors, particles can continue circulating through ventilation systems and open windows. Many people notice symptoms such as: Itchy eyes Sneezing Sinus pressure Night coughing Morning congestion Heavy breathing Why Mucus Build-Up Feels Worse in Heat In both asthma and COPD, mucus management is extremely important. During hot weather: Dehydration may thicken mucus Airways can become irritated Inflammation may increase The body struggles to clear congestion effectively This creates a cycle where: Airways become inflamed More mucus is produced Breathing becomes more restricted The lungs work harder Fatigue increases This is why many people feel exhausted during heatwaves — even while resting. The Importance of Supporting Your Respiratory Environment People living with respiratory conditions often benefit from creating environments that support easier breathing. This may include: Staying hydrated Avoiding peak heat hours Using air purifiers Reducing exposure to smoke and pollution Resting in calm, temperature-controlled spaces Some people also explore complementary wellness approaches such as halotherapy (salt therapy). How Halotherapy May Help During Hot Weather Halotherapy involves relaxing in a salt-infused environment while breathing normally. Dry salt aerosol is commonly used in wellness settings to support: Airway cleansing Mucus management Respiratory comfort Relaxation and stress reduction Many people with asthma, allergies, sinus congestion, or COPD include salt therapy as part of their wider wellness routine — particularly during seasonal changes. At Crystal Salt Cave in Borehamwood, sessions take place in calming salt rooms designed for both adults and families. Our Adult Room includes: Reclining massage chairs Soft ambient lighting Relaxing music Pharmaceutical-grade dry salt dispersed through a halogenerator The Family Room offers a gentler environment suitable for children and parents. COPD & Asthma During Heatwaves: Practical Tips Stay Hydrated Water helps keep mucus thinner and easier to clear. Avoid Peak Heat Try to stay indoors during the hottest part of the day (usually 11am–4pm). Monitor Air Quality High pollution days may worsen respiratory symptoms. Keep Indoor Air Comfortable Avoid overly dry or extremely cold air conditioning. Listen to Your Body If breathing feels harder than usual, allow yourself more rest and avoid overexertion. Breathing Shouldn’t Feel Like Hard Work Summer is meant to feel light and energising — but for many people with respiratory conditions, hot weather can make every breath feel heavier. Understanding how heat affects the lungs is the first step toward managing symptoms more effectively and supporting your breathing naturally. If you are looking for a calm environment to relax, breathe deeply, and take time for yourself, halotherapy may be a supportive addition to your wellness routine. 📍 Crystal Salt Cave Borehamwood 🌬️ Adult & Family Salt Therapy Sessions 🧂 Natural Wellness & Respiratory Support 📞 020 3620 1346 FAQ Can hot weather worsen COPD? Yes. Heat and humidity can make breathing feel more difficult for people with COPD because the lungs need to work harder in heavy air conditions. Does heat affect asthma? For some people, yes. Hot air, pollution, pollen, and humidity may trigger asthma symptoms or increase airway irritation. Can salt therapy cure asthma or COPD? No. Halotherapy is considered a complementary wellness practice and should not replace medical treatment or advice from healthcare professionals. How often should I do salt therapy? Many people begin with 2–3 sessions weekly before continuing with maintenance sessions depending on personal preference and wellness goals.