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Excessive Heat: Causes, Health Risks, and Staying Safe in Hottest Summers

India is heating upโ€”faster than almost anywhere else on Earth. In April 2025, temperatures pushed 44ยฐC across multiple states, with Malegaon in Nashik recording mercury levels above 43ยฐC. This excessive heat is no longer just a seasonal inconvenience; it is a public health emergency.
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excessive heat health risks

What is excessive heat?

  • Excessive heatย refers to temperatures significantly above the normal range for a region, sustained over several days. In India, a heatwave is declared when plains reachย 40ยฐCย with a departure ofย 4.5ยฐCย or more from normal. However, the real danger lies in the combination of high heat and rising humidity, which prevents the body from cooling itself through sweat.

How Excessive Heat Harms the Body

  • Whenย excessive heatย overwhelms your internal regulation, it can lead to a cascade of dangerous conditions:

  • Heat Exhaustion: Characterized by heavy sweating, dizziness, and nausea. Move to a cool area immediately.
  • Heat Stroke:A life-threatening emergency where the body temperature exceedsย 104ยฐF. If someone stops sweating or becomes confused, callย 112
  • Chronic Impact:Prolonged exposure toย excessive heatย places a cumulative burden on the heart and kidneys, exacerbating existing conditions like diabetes and cardiovascular disease.
  • ย 
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Who is Most Vulnerable?

  • Whileย excessive heatย affects everyone, certain groups face higher risks:

    • The Elderly:Their ability to regulate temperature declines with age.
    • Children:They produce more heat relative to their body size.
    • Outdoor Workers:Those in construction or farming faceย 3 times higher oddsย of adverse health outcomes.
    • Pregnant Women:High temperatures are linked to risks like low birth weight and preterm deliveries.

10 Ways to Beat Excessive Heat

    1. Hydrate Early:Drinkย 3โ€“4 littersย of water daily; don’t wait until you’re thirsty.
    2. Avoid Peak Sun:Stay indoors betweenย 11 AM and 4 PM.
    3. Dress Light:Wear loose, light-coloured cotton fabrics.
    4. Cool Your Space:Keep curtains closed during the day to block direct sunlight.
    5. Never Leave Kids in Cars:A parked car in the sun can reachย 70โ€“80ยฐCย in minutes.
    6. Check on Neighbours:Ensure the elderly and those living alone are staying cool.
    7. Eat Water-Rich Foods:Choose cucumbers, watermelon, and curd over heavy, oily meals.
    8. Active Cooling:Use cool showers or damp cloths on your neck and wrists.
    9. Store Meds Safely:High heat can degrade medicines like insulin or inhalers.
    10. Know the Signs:Recognize the difference between heat cramps and a medical emergency.
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Healthcare Simplified in the Heat

  1. In Nashik and across Maharashtra, the impact ofย excessive heatย is severe.ย Medola Healthcare is here to help you stay safe without leaving your home.
  • Home Doctor Visits:Avoid travelling in the sun by having a doctor come to you.
  • Medicine Delivery:Get your prescriptions delivered directly to your doorstep.
  • Digital Records:Access your health data securely on the cloud via the Medola App.

Don’t ignore the heat.ย Stay informed, stay hydrated, and reach out for professional care if symptoms persist.

Contact Medola Healthcare: