Context

As extreme weather events become more common, we must shift our attention from treating emergencies to preventing issues via equitable and compassionate public health practices.

Impact of Extreme Heat on Public Health

Rise in Heat-Related Illnesses and Deaths

• Extreme heat leads to heatstroke, dehydration, and worsens pre-existing chronic conditions such as cardiovascular and renal diseases.
  
  
• Data Insight: According to the National Centre for Disease Control (NCDC), over 25,000 heat-related deaths were recorded in India from 1992 to 2020.
  

Overburdened Healthcare Infrastructure

• Hospitals experience a sudden surge in emergency cases during heatwaves, often overwhelming already stretched facilities.
  
  
• Case Example: During the 2022 heatwave, Delhi’s Lok Nayak Hospital reported a 30% spike in patients suffering from heat-related symptoms within a week.
  
  

Limitations of Current Health Response

• The present health strategy is reactive, focusing largely on crisis management—hospital admissions, IV fluids, and emergency interventions.
  
  
• There is minimal focus on anticipation and prevention, making the system unsustainable in the long run.
  
  
• With climate change intensifying, a shift towards heat action plans, early warning systems, community awareness, and preventive public health strategies is crucial.

Why is it essential to integrate weather alerts with health systems?

• Enables timely preventive action: Early warning systems enable healthcare staff to plan and respond before heat waves cause medical issues. For example, in Ahmedabad, heat alarms trigger the delivery of hydration kits and public advice, lowering the number of instances of heatstroke.
• Enhances Community Response: Alerts distributed by ASHA workers or local networks might prompt door-to-door checks, particularly for the elderly and chronically ill. For example, during red alerts, ASHAs may send WhatsApp messages and visit vulnerable residents.
• Reduces the burden on emergency healthcare: Early intervention to prevent illness (such as avoiding midday work and improving water) reduces the burden on hospitals and emergency services. For example, using meteorological inputs in pre-monsoon planning allows health clinics to store cooling kits and prepare treatment areas.

Challenges and Prospective Solutions to Heat-Related Health Issues in India

Primary Care as the First Line of Defence

• Strengthening Primary Health Care is crucial to address rising heat-related health issues in India. The system needs to be fortified and climate-proofed.
  
  
• Community health workers, especially ASHAs (Accredited Social Health Activists), are well-positioned to act as heat safety champions in rural and semi-urban settings.
  
  
• With proper training and protocols, ASHAs can:
  
  
• Deliver early heatwave warnings
  
  
• Educate communities on protective measures
  
  
• Provide basic interventions such as hydration advice and checking on vulnerable individuals (elderly, children, chronically ill)
  
  
• Integration of meteorological early warning systems with local health networks can significantly improve community-level preparedness.
  
  
• Example: In cities like Ahmedabad, measures like:
  
  
• Door-to-door visits
  
  
• WhatsApp alerts
  
  
• Distribution of hydration kits
  have proven simple yet effective in reducing heat-related illnesses.
  
  

Integrating Heat Prevention with Chronic Disease Management

• Individuals with chronic conditions like diabetes, heart disease, or kidney disorders are at higher risk during heatwaves.
  
  
• Their treatment protocols must be adjusted seasonally, particularly during peak summer, to prevent complications from heat stress.
  
  

Updating Clinical Protocols for Heat Readiness

• Clinical awareness of heat-related illnesses remains low, despite the increasing frequency of heatwaves.
  
  
• Health-care providers often fail to screen for heat exposure, leading to misdiagnosis or missed cases of heatstroke.
  
  
• There is an urgent need for:
  
  
• Clear and standardised clinical protocols for identifying and managing heat illnesses
  
  
• Conducting summer readiness drills in hospitals
  
  
• Creating ‘heat corners’ in emergency departments
  
  
• Pre-stocking cooling kits to treat patients effectively
  
  

A Shift in Approach

• Emphasis must move from symptom treatment to proactive prevention.
  
  
• A climate-resilient health system, backed by trained community workers and early warning integration, is key to India’s heatwave preparedness.

Government Measures to Tackle Heatwaves in India

• Development of Heat Action Plans (HAPs):
  The government, in collaboration with local bodies and NGOs, has promoted city-level HAPs to reduce heat-related mortality.
  
  
• Example: Ahmedabad Heat Action Plan (2013) features early warning systems, public cooling spaces, and training for health workers.
  
  
• Integration with Meteorological Services:
  The India Meteorological Department (IMD) provides heat alerts, which are now being integrated with local health systems to enable proactive responses.
  
  
• Example: In Odisha, IMD alerts trigger ASHA worker messaging and hydration kit distribution.
  
  
• Policy Push for Climate-Resilient Health Systems:
  The National Action Plan on Climate Change and Human Health (NAPCCHH) promotes building climate-ready health infrastructure, clinical protocols, and staff training.
  
  
• Example: Health ministries now issue heat stress advisories, guiding on medication modifications for chronic illnesses.

Way Forward: Building a Heat-Resilient Health System

• Strengthening Primary Health Infrastructure:
  Equip primary health centres, Health & Wellness Centres, and ASHA workers with tools to detect and manage heat illnesses.
  
  
• Example: In rural Gujarat, trained ASHA workers conduct door-to-door checks and use WhatsApp for public awareness.
  
  
• Integrating Heat Risk into Chronic Disease Care:
  Clinicians must adjust treatment plans and counsel high-risk patients during peak heat events.
  
  
• Example: In Delhi, doctors closely monitor diabetic patients during heat alerts.
  
  
• Standardising Clinical Protocols for Heat Illness:
  Establish national guidelines for diagnosing and treating heatstroke and heat stress, including summer drills and hospital heat corners.
  
  
• Example: Rajasthan hospitals stock cooling kits and have heat response units.

Practice Question Q. Describe various elements of a resilience framework. Also mention the global targets of the Sendai Framework for Disaster Risk Reduction (2015- 2030).