How Can Extreme Weather Affect Our Health?

Global climate change has triggered a higher frequency of extreme weather events, ranging from scorching heatwaves to flash floods and severe storms. This phenomenon is not merely an environmental issue; it is a real public health crisis. The human body has certain limits of tolerance, and when the weather shifts to extremes, our biological systems begin to be stressed.

1. Impact of Heatwaves

Drastically soaring temperatures are one of the biggest silent killers in the extreme weather category. When the ambient temperature exceeds the normal body temperature, natural cooling mechanisms (such as sweating) can fail.

• Heat Exhaustion & Heat Stroke: Conditions where the body is no longer able to cool itself, which can lead to organ failure and even death.

• Severe Dehydration: Disrupts kidney function and electrolyte balance.

• Cardiovascular Disease: The heart has to work extra hard to pump blood to the skin's surface to dissipate heat, which is risky for individuals with heart conditions.

2. Respiratory Issues and Air Quality

Extreme weather often coincides with a decline in air quality.

• Air Pollution and Smog: Hot temperatures increase ground-level ozone, which irritates the lungs.

• Wildfires: Extreme droughts trigger fires that release fine particulate matter (PM2.5). These particles can penetrate deep into the respiratory system and cause asthma, bronchitis, and even heart attacks.

• Allergies: Longer summers extend the pollen season, worsening conditions for people with allergic rhinitis.

3. Waterborne and Vector-borne Diseases

Extreme rainfall and flooding create an ideal environment for disease spread.

• Waterborne Diseases: Floods often contaminate drinking water sources with sewage, leading to outbreaks of diarrhea, cholera, and leptospirosis.

• Vector-borne Diseases: Stagnant water after floods becomes a breeding ground for mosquitoes. This increases the risk of dengue fever (DHF), malaria, and the Zika virus.

4. Psychological and Mental Health Impacts

Mental health is often overlooked in discussions of extreme weather. Loss of homes due to storms, anxiety about the future (eco-anxiety), and post-traumatic stress disorder (PTSD) after natural disasters are real impacts that can last a long time.

Conclusion

Extreme weather is no longer a future threat but a present reality that affects our physical and mental health. Understanding the risks and preparing mitigation steps are key to surviving in a constantly changing environment.