Prevention of Heat-Related Illness

Heat-related illnesses, especially heat stroke, are a significant cause of morbidity and mortality in vulnerable persons during prolonged heat spells in temperate climates. Heat stroke produces a classic triad of symptoms: anhidrosis, temperature above 40°C (105°F), and mental changes. The very young and very old are especially vulnerable. Timely cooling measures must be initiated to prevent progression to multiple complications and death.