Geneva hospitals are bracing for a delayed surge as symptoms of last week's heat wave hit patients days after the temperatures dropped.
Doctors at Geneva University Hospital say heat acts as a stress factor whose full impact often takes several days to trigger dehydration, cardiovascular problems or kidney failure, even after the weather cools.
Tropical nights have made things worse by depriving the body of overnight recovery.
The warning signs to watch for are extreme fatigue, confusion, falls or breathing difficulty, and isolated older residents are most at risk.
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