How Extreme Heat Affects Your Health Signs, Dangers & Safety Tips
🌡️ Key Facts About Heat and Health
- Heat is a serious environmental and occupational health risk
- Heat stress is a leading cause of weather-related deaths
It can worsen existing diseases such as:
Cardiovascular disease- Diabetes
- Asthma
- Mental health conditions
Heatstroke is a medical emergency with a high death rate
📊 Global Impact
- Heat exposure is increasing due to climate change
- Heat-related deaths among people aged 65+ increased by 85% (2000–2021)
Around 489,000 deaths per year are linked to heat (2000–2019)
45% in Asia- 36% in Europe
- In 2022, Europe recorded 61,672 heat-related deaths
Historic heatwaves:
2003 Europe: 70,000 deaths- 2010 Russia: 56,000 deaths
- 🌍 Overview of Heatwaves
A heatwave is a period of unusually high temperatures lasting several days and nights.
Key Characteristics
- Increasing in frequency, intensity, and duration
- Caused mainly by climate change
- Affect large populations quickly
- Can trigger public health emergencies
- Impacts of Heatwaves
- Increased illness and death
- Reduced work productivity
- Power outages affecting healthcare
- Water and transport disruptions
👥 Who Is Most Affected?
High-Risk Groups
- Older adults (65+)
- Children and infants
- People with chronic illnesses
- Individuals with weak immune systems
Occupational Risk
- Outdoor workers
- Manual laborers
- Athletes
- Emergency responders
Social & Environmental Factors
- Poor housing conditions
- Lack of cooling systems
- Urban heat (due to less greenery)
- Low-income communities
⚠️ How Heat Affects the Human Body
- Heat builds up in the body due to:
- High temperature and humidity
- Low airflow
- Heat-retaining clothing
- Direct sun exposure
Health Effects
- Heat exhaustion
- Heatstroke
- Dehydration
- Kidney damage
- Increased stress on heart
Worsening of Existing Conditions
- Heart disease
- Respiratory illness
- Diabetes
- Mental health issues
🚨 Complications of Extreme Heat
- Increased hospital admissions
- Risk of accidents due to fatigue
- Reduced learning and work ability
- Air pollution-related health issues
🛑 What You Should Do During Heatwaves
Stay Out of Heat
- Avoid going outside during peak heat hours
- Stay in shaded areas
- Spend 2–3 hours daily in a cool place
- Follow official heat warnings
🏠 Keep Your Home Cool
- Open windows at night for fresh air
- Close windows/blinds during the day
- Turn off unnecessary electronics
- Use fans only below 40°C
- Use AC at 27°C for energy efficiency
💧 Keep Your Body Cool & Hydrated
- Wear light, loose clothing
- Take cool showers
Drink plenty of water:
1 glass per hour- 2–3 liters daily
- Check on elderly and vulnerable people
👶 Protect Children & Infants
- Never leave children in parked cars
- Avoid direct sunlight during peak hours
Use:
Hats- Sunglasses
- Sunscreen
- Use light clothing and keep them cool
Important Tips
- Do NOT cover strollers with dry cloth
- Use damp cloth + fan for cooling
⚡ Prevention & Awareness
- Stay informed about heat alerts
- Plan activities in cooler hours
- Improve home ventilation
- Support vulnerable communities
✅ Conclusion
Extreme heat is a growing global health threat, but its risks are largely preventable. By staying informed, hydrated, and cool, individuals and communities can protect themselves and reduce the impact of heat-related illnesses.
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