【Disaster Specialist Explains】Heatwave Survival｜“Extreme Heat Is a Silent Killer—Small Actions Prevent Life-Threatening Emergencies”

Heatwaves are becoming more frequent and more dangerous worldwide. High temperatures strain the body, overwhelm power grids, and create life-threatening conditions—especially for children, the elderly, and outdoor workers. As a disaster specialist, I explain the essential steps to stay safe during extreme heat events.

---

■① Hydration Is Your First Line of Defense

Even mild dehydration increases the risk of heatstroke. During heatwaves:

• Drink water frequently, even if not thirsty
• Avoid alcohol and excessive caffeine
• Carry a bottle at all times
• Use electrolyte drinks during long exposure

Hydration keeps the body’s cooling system functioning.

---

■② Keep Indoor Temperatures Safe

Heatwaves often cause indoor temperatures to rise dangerously. To stay safe:

• Use fans and air conditioning when available
• Close curtains and blinds to block sunlight
• Ventilate rooms during cooler hours
• Move to cooling centers if your home becomes too hot

Indoor heat kills more people than outdoor exposure.

---

■③ Avoid Outdoor Activities During Peak Heat

Heatstroke can occur in minutes. To reduce risk:

• Stay indoors from late morning to afternoon
• Schedule activities early or late in the day
• Wear lightweight, light-colored clothing
• Take frequent breaks in shaded areas

Do not underestimate how quickly the body overheats.

---

■④ Protect Vulnerable Family Members

Heatwaves disproportionately affect:

• Elderly residents
• Infants and young children
• People with chronic illnesses
• Outdoor workers
• Pets

Check on them regularly, ensure hydration, and move them to cooler environments.

---

■⑤ Recognize Early Warning Signs of Heat Illness

Immediate action prevents fatal outcomes. Watch for:

• Dizziness
• Headache
• Nausea
• Confusion
• Hot, dry skin

If symptoms appear, move to a cool area, hydrate, and seek medical help if condition worsens.

---

■Summary

Heatwaves are deadly but preventable emergencies. Hydration, temperature control, reduced outdoor exposure, and close monitoring of vulnerable individuals save lives. Preparing for extreme heat ensures your family remains safe during one of the most underestimated natural hazards.