Why it works
Why colder water is not always better
Short answer
Cool water can provide effective relief without needing to be painfully icy; the best method is one a person can use safely and continuously.
The simple explanation
- ✓Cool skin with water and airflow.
- ✓Wrap cold packs rather than applying them directly.
- ✓For suspected heatstroke, call emergency services and follow their instructions.
Why it works
This advice follows NHS guidance and the underlying principles of personal cooling and heat transfer.
Important exceptions
Safety, health, weather and the design of your home can change what is appropriate. Stop if an action makes conditions worse.
Related guides
Sources & evidence
Reviewed 2026-08-21
- NHS: Heat exhaustion and heatstroke ↗
Supports: Heat-illness symptoms, cooling actions and when to seek emergency help.
health guidance · Accessed 2026-08-21