London Ambulance Busiest Day Ever as Europe Heatwave
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- London Ambulance Service responded to its highest-ever number of life-threatening emergencies on Wednesday, with cardiac arrests up 30% and overall life-threatening calls up 50% versus a typical June Wednesday, as temperatures hit the mid-30s.
- Paris's ambulance service saw four times more cardiac arrests than normal over a 24-hour period during the heatwave, according to France's Health Minister Stéphanie Rist, who warned 'young people are also suffering from cardiac arrests.'
- Paris mayor Emmanuel Grégoire imposed a public alcohol ban from noon through the night on Friday and Saturday, and called roughly 100 joggers he saw on the street 'irresponsible,' saying people must not believe they are 'invulnerable.'
- Alcohol Change UK warned of a 'dehydration double whammy' during the heatwave, noting that alcohol is a diuretic while hot weather drives heavy sweating, making constant water intake critical.
- London Ambulance Service COO Craig Harman advised football fans ahead of England's World Cup match against Panama on Saturday to drink water between alcoholic beverages and avoid exercising outside during peak heat, even when temperatures still exceed 30C.
- Health experts noted that heat exhaustion can strike fit and healthy people — especially after strenuous exercise or drinking in the sun — and can escalate to heatstroke, a medical emergency marked by fast breathing, collapse, or unconsciousness requiring urgent care.
Why it matters: A 50% spike in life-threatening emergency calls and a fourfold rise in cardiac arrests in two major European capitals show that extreme heat is no longer just a risk for the elderly or infirm — even fit young people exercising or drinking in the sun are landing in ambulances. With England's World Cup match and another 30C-plus Saturday expected, the warning is operational: pacing, hydration, and skipping the run may be the difference between a beer garden and a cardiac arrest.
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