I'm telling the sad truth, the 'heatwaves' can and have been deadly.

"...An estimated 51,670 deaths in England...were associated with the hottest days over the 35 years from 1988 to 2022."

In 2022 alone '...an estimated 4,507 deaths...were associated with the hottest days in England."

https://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/deaths/articles/climaterelatedmortalityandhospitaladmissionsenglandandwales/1988to2022

"Heatwaves... are the deadliest extreme weather, as their dangers are less visible than storms or wildfires and often go underreported. People living in cities and the elderly are most at risk from physical and mental health impacts of high temperatures."

https://www.imperial.ac.uk/news/259833/record-breaking-heat-putting-uk-public-health/

https://www.gov.uk/guidance/heat-summary-heat-mortality-monitoring-reports

https://researchbriefings.files.parliament.uk/documents/POST-PN-0723/POST-PN-0723.pdf