04/01/2026
Why Hot Weather Can Be Harmful
High temperatures can overwhelm the body’s ability to regulate heat, leading to dehydration, heat exhaustion, or heat stroke. Risk increases during heatwaves, high humidity, physical exertion, and inadequate fluid intake.
People at Higher Risk
• Older adults and young children
• Pregnant people
• People with chronic conditions (heart disease, diabetes, kidney disease, respiratory illness)
• People taking diuretics, anticholinergics, antipsychotics, antidepressants, beta-blockers, or ACE inhibitors
• People who live alone or without air conditioning
• Outdoor workers and athletes
Common Heat-Related Conditions
Dehydration
• Thirst, dry mouth
• Dark urine, reduced urine output
• Dizziness, fatigue
Heat Exhaustion
• Heavy sweating, weakness
• Headache, nausea, vomiting
• Dizziness, fainting
• Cool or clammy skin
Heat Stroke (Medical Emergency)
• Body temperature ≥40°C
• Confusion, agitation, seizures
• Hot, dry skin or stopped sweating
• Loss of consciousness
What Patients Can Do
Stay Hydrated
• Drink water regularly; do not wait until thirsty
• Avoid excessive alcohol and caffeine
• Oral rehydration solutions may help if sweating heavily
Keep Cool
• Stay in air-conditioned or shaded areas
• Use fans, cool showers, or damp cloths
• Wear light-coloured, loose-fitting clothing
• Avoid outdoor activity during the hottest part of the day (usually 11 am–4 pm)
Plan Ahead
• Check weather forecasts and heatwave alerts
• Arrange welfare checks for vulnerable people
• Never leave children or pets in parked cars
Medication Awareness
• Continue prescribed medications unless advised otherwise
• Discuss heat-related medication risks with your GP or pharmacist
When to Seek Medical Help
• Symptoms of heat exhaustion that do not improve with rest and fluids
• Vomiting preventing fluid intake
• Confusion, collapse, seizures, or very high body temperature�Call emergency services immediately if heat stroke is suspected.
Practical Tips for Home
• Close blinds during the day; ventilate at night if cooler
• Eat light meals
• Keep a water bottle nearby at all times
