England's heatwaves see highest ever excess deaths among elderly

England saw the highest excess mortality figure from heatwaves this year since records began in 2004, health officials said on Friday, after a hot summer that saw temperatures rise to all-time highs.

England recorded 2,803 excess deaths among those aged 65 and over during summer heatwaves this year, possibly due to complications arising from extreme heat, the UK Health Security Agency (UKHSA) said in a statement. The figures exclude deaths from Covid-19.

"These estimates show clearly that high temperatures can lead to premature death for those who are vulnerable," UKHSA Chief Scientific Officer Isabel Oliver said.

"Prolonged periods of hot weather are a particular risk for elderly people, those with heart and lung conditions or people who are unable to keep themselves cool such as people with learning disabilities and Alzheimer's disease."

Britain recorded its highest ever temperature, of just above 40 Celsius (104 Fahrenheit) in eastern England on 19 July.

The heatwave, which caused fires across large grass areas, destroyed property and pressured transport infrastructure, had been made at least 10 times more likely because of climate change, scientists said.

Around 1,000 excess deaths were recorded among those over 65 between 17-20 July, the UKHSA said, while the 8-17 August period recorded an estimated 1,458 excess deaths.

Statisticians use "excess deaths" — a term that became more commonplace during the coronavirus pandemic — to describe the number of fatalities in excess of normally observed mortality numbers for a particular time of year.

Despite peaks in mortality during heatwaves, the majority of days in the winter usually show a higher number of deaths than in the summer, ONS Head of Mortality Analysis Sarah Caul said.