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Heat Stroke vs. Heat Exhaustion: Staying Safe in Dubai's Summer

With temperatures exceeding 45°C in Dubai's summer, heat-related illness is a real risk for outdoor workers, children, athletes, and tourists. Learn to recognise the warning signs and when to seek emergency care.

Dr. Sevdalina Velizarova

Internal Medicine

8 May 2026

Dubai's Summer Heat: A Serious Health Risk

As of May 2026, the UAE has entered summer with temperatures already reaching 40-44°C and humidity levels that make it feel even hotter. The UAE government enforces a midday outdoor work ban (12:30-3:00 PM) from June 15 to September 15 every year - a measure that underscores just how dangerous the heat can be.

At Al Das Medical Clinic, we see a significant increase in heat-related consultations from May through September. Understanding the difference between heat exhaustion and heat stroke could save a life.

Heat Exhaustion vs. Heat Stroke: Know the Difference

These are two stages of the same problem - but heat stroke is a medical emergency:

FeatureHeat ExhaustionHeat Stroke
Body temperatureBelow 40°CAbove 40°C
SkinCool, pale, clammy, sweatingHot, red, dry (sweating stops)
Mental stateAlert but fatiguedConfused, agitated, or unconscious
PulseFast but weakFast and strong
HeadacheYesSevere, throbbing
NauseaPossibleCommon, may vomit
UrgencyMove to shade, hydrateCALL 999 - life-threatening

The critical distinction: In heat exhaustion, the body is still trying to cool itself (sweating). In heat stroke, the cooling system has failed (sweating stops, temperature spikes). Heat stroke can cause organ damage and death within minutes if untreated.

Who Is Most at Risk?

  • Outdoor workers - construction, delivery, landscaping (despite midday ban, early morning and late afternoon still reach 38-40°C)
  • Children under 4 - their bodies heat up 3-5 times faster than adults
  • Elderly residents - reduced ability to regulate temperature
  • Athletes and gym-goers - outdoor exercise, even early morning
  • Tourists - unfamiliar with the intensity of Gulf heat
  • People on certain medications - diuretics, beta-blockers, antihistamines, and antidepressants can impair heat regulation
  • Those with chronic conditions - diabetes, heart disease, obesity

Warning Signs to Watch For

Early warning signs (act immediately):

  • Heavy sweating with cold, pale skin
  • Muscle cramps, especially in legs and abdomen
  • Fatigue and weakness
  • Dizziness or lightheadedness
  • Headache
  • Nausea or loss of appetite
  • Dark-coloured urine (dehydration)

Danger signs (seek emergency care):

  • Confusion, slurred speech, or irrational behaviour
  • Seizures
  • Loss of consciousness
  • Skin that is hot and dry with no sweating
  • Body temperature above 40°C
  • Rapid, shallow breathing

First Aid for Heat Exhaustion

If you or someone shows signs of heat exhaustion:

  1. Move to a cool place - air-conditioned building, shaded area, or car with AC running
  2. Lie down and elevate the legs slightly
  3. Remove excess clothing - loosen tight garments
  4. Cool the skin - spray or sponge with cool water, apply cold packs to neck, armpits, and groin
  5. Rehydrate - sip cool water or oral rehydration solution (ORS). Avoid ice-cold drinks (can cause stomach cramps)
  6. Monitor - symptoms should improve within 30 minutes

If symptoms don't improve within 30 minutes, or if the person becomes confused or stops sweating, call 999 immediately - this may be progressing to heat stroke.

First Aid for Heat Stroke - Emergency

Heat stroke is a medical emergency. While waiting for the ambulance:

  1. Call 999 immediately
  2. Move the person to the coolest available area
  3. Cool aggressively - immerse in cold water if possible, or cover with wet sheets and fan continuously
  4. Apply ice packs to neck, armpits, and groin (where large blood vessels are close to the surface)
  5. Do NOT give fluids if the person is confused or unconscious (choking risk)
  6. Place in recovery position if unconscious but breathing

Children and Heat: Special Considerations

Children are particularly vulnerable because:

  • They produce more heat relative to body size during activity
  • They sweat less efficiently than adults
  • They may not recognise or communicate early symptoms
  • They can become dehydrated much faster

Never leave a child in a parked car - even with windows cracked, car interiors can reach 70°C within minutes in Dubai's summer. This is the leading cause of heat stroke death in children.

Signs of heat illness in children:

  • Unusual irritability or lethargy
  • Refusing to drink
  • Fewer wet nappies (infants)
  • Flushed, hot skin
  • Rapid breathing

Prevention: Staying Safe in Dubai's Summer

Hydration:

  • Drink at least 3-4 litres of water daily (more if active)
  • Don't wait until you're thirsty - thirst means you're already dehydrated
  • Add electrolytes (ORS sachets or coconut water) if sweating heavily
  • Limit caffeine and alcohol - both increase dehydration
  • Children should drink water every 20 minutes during outdoor play

Timing:

  • Avoid outdoor activity between 10 AM and 4 PM
  • Exercise early morning (before 7 AM) or after sunset
  • If you must be outdoors, take breaks in shade every 15-20 minutes

Clothing:

  • Light-coloured, loose-fitting, breathable fabrics
  • Wide-brimmed hat and UV-protective sunglasses
  • Wet a cloth and drape around the neck for evaporative cooling

Environment:

  • Use AC - it's not a luxury in Dubai, it's a health necessity
  • Check on elderly neighbours and relatives who may not use AC adequately
  • Ensure your car AC is working before summer

When to Visit Al Das Medical Clinic

Come in for a consultation if:

  • You've had an episode of heat exhaustion and want to ensure full recovery
  • You're on medications that may increase heat sensitivity and want guidance
  • Your child has had repeated episodes of heat-related symptoms
  • You need advice on safe exercise routines during summer
  • You want a hydration and electrolyte plan for Ramadan fasting during summer months

Dr. Sevdalina Velizarova (Internal Medicine Specialist, Member of the European Society of Cardiology) provides comprehensive assessment of heat-related illness, including cardiac monitoring for patients who have experienced severe heat stroke. She advises on medication adjustments during summer months.

Dr. Raef Ghattas (General Practitioner, military medicine training) has extensive experience managing heat-related emergencies and can create personalised prevention plans for outdoor workers and athletes.

"Every summer I see patients who underestimate Dubai's heat. The most dangerous situation is when someone pushes through early warning signs - the muscle cramps, the headache, the dizziness. These are your body telling you to stop, cool down, and hydrate. Listen to them." - Dr. Sevdalina Velizarova, Internal Medicine

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