Heatwaves: Protecting Health During Extreme Heat

Overview

A heatwave is a prolonged period of extremely hot weather that can seriously affect health, agriculture, and infrastructure. Heatwaves are becoming more frequent due to climate change and urbanization.

Causes & Warning Signs

Causes

• High-pressure weather systems
• Climate change
• Urban heat island effect

Warning Signs

• Extremely high temperatures
• Heat alerts
• Increased heat-related illnesses

Preparedness

Before a Heatwave

• Monitor weather forecasts
• Identify cooling centers
• Prepare hydration supplies

During a Heatwave

• Stay hydrated
• Avoid outdoor activities
• Wear light clothing

After a Heatwave

• Monitor health
• Check on vulnerable individuals
• Resume activities gradually

Emergency Checklist

• Drinking water
• Electrolytes
• Sunscreen
• Cooling towels

Learning Resources

• 🌐 https://www.who.int
• 🌐 https://www.cdc.gov/heat
• 🌐 https://www.ready.gov/heat

Real-Life Examples

European Heatwaves

Highlighted public health vulnerabilities and the need for heat action plans.

Key Takeaway

Heatwaves are silent killers—hydration and awareness are essential.