MEN are more likely to die when temperatures rise on summer nights, a study has found.
Even a 1°C increase on top of the usual seasonal heat could cause about 4 percent more cardiovascular deaths.
However, the risk appears to only exist in males, with females unaffected, according to new research in the BMJ Open.
Previous studies had found that periods of warm weather coincided with increases in deaths and cardiovascular patients.
But there were no age-specific studies on this, so a team from the University of Toronto looked at deaths in people aged 60 to 69.
They used data from the Office for National Statistics, which recorded one cardiovascular death between June and July between 2001 and 2015.
The team chose England and Wales because heat waves are most common and intense in the UK during those months and they could also study meteorological events in parallel.
They also used similar information from US data for King County, Washington, which has a similar climate, but this only included males.
Results showed that between 2001 and 2015, 39,912 CVD deaths (68.9 percent males) were recorded in England and Wales and 488 deaths in King County.
In England and Wales, a 1°C increase in the usual summer nighttime temperature was associated with a 3.1 per cent increase in cardiovascular mortality risk in men aged 60 to 64, but not in older men or both age groups of women.
In King County, a 1°C increase was associated with a 4.8 percent increased risk of cardiovascular mortality in men under 65 years of age.
The authors say this points to a significant risk in England and Wales, where despite preventive measures in later years, event rates remained more than 50 percent higher in adults aged 65 to 69.
This is of concern given that areas such as England and Wales have recently seen increases in nighttime rather than daytime summer heat intensity.
They concluded: “The present results should stimulate a similar study of exposure and event rates in other mid- to high-latitude populated regions.
“Given the growing likelihood of extreme summers in the western US and UK, our findings invite preventive community health initiatives and novel urban strategies aimed at reducing the future risk of CVD events.”
A cardiovascular event can include a heart attack or cardiac arrest.
Sweating and chest tightness are early indicators of a heart attack.
Experts have urged Brits to call for help if this is the case think they are having a heart attack.
NHS Medical Director Professor Stephen Powis said: “Unfortunately, cardiovascular disease accounts for a quarter of all deaths across the country and we have identified this as the single biggest area where we can save lives over the next decade.
“This new NHS campaign will be an important tool in this lifesaving mission – there’s no underestimating helping people know when they, or someone close to them, are having a heart attack and when to seek medical help early.
“It can be easy to dismiss early symptoms as they don’t always feel severe, but it’s never too early to dial 999 in these circumstances – and the sooner you act, the greater the chances of a full recovery.”
More than 80,000 people have to be hospitalized Heart attack every year in England.
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https://www.thesun.ie/health/8573755/men-more-likely-die-heat-night/ Men are more likely to die when temperatures rise at night, a study warns