Hot Summer Nights Increase Risk of Death from Heart Disease in Men in Early 60s

Heat stroke of elderly people who are often in summerThe incidence of cardiovascular disease (CVD) is rising globally, and new research is finding potential risk factors for this condition. A recent study published in the BMJ Open found that warmer than usual summer nights may lead to increased cardiovascular deaths in men in their early 60s.

Previous research has only focused on the potential danger of warm spells in the summer that involve extreme heat or long periods of high temperatures. But so far, findings have been inconsistent. Hence, researchers from the University of Toronto, Canada, set out to find any possible link between high summer temperatures at night and increased cardiovascular disease. They focused on death in people aged 60 to 69 years old.


For the study, researchers used data from the Office for National Statistics on adult deaths for June and July every year between 2001 and 2015. They chose England and Wales because heatwaves in the UK are most frequent and intense during these months. Corresponding information from official US data for King County, Washington, a similar sea-facing region with parallel latitude to England and Wales, was also analyzed.

Researchers found that between 2001 and 2015, there were 39,912 cardiovascular disease deaths recorded in England and Wales and 488 deaths in King County. After allowing for certain variables, in England, a 1°C was associated with a 3.1% increase in the risk of cardiovascular disease mortality among men aged 60 to 64.

However, these results were not found in older men or women in any age group. In King County, a 1°C was associated with a 4.8% increase in the risk of cardiovascular disease mortality.

Over the 15 year period observed, cardiovascular disease rates have declined in both regions annually, notably over the summer months. However, a considerable risk still persists, and in England and Wales, cardiovascular event rates remain more than 50% higher in adults aged 65 to 69 compared to those aged 60 to 64 years.

Researchers concluded, “The present findings should stimulate similar investigation of exposure and event rates in other populous mid-latitude to high-latitude regions. Considering the growing likelihood of extreme summers in western US and UK, our results invite preventive population health initiatives and novel urban policies aimed at reducing future risk of CVD events.”

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Author Bio

Sarah began her interest in nutritional healing at an early age. After going through health problems and becoming frustrated with the conventional ways doctors wanted to treat her illness (which were not working), she took it upon herself to find alternative treatments. This led her to revolutionize her own diet to help her get healthier and tackle her health problems. She began treating her illness by living a more balanced lifestyle through healthy food choices, exercise and other alternative medicine such as meditation. This total positive lifestyle change led her to earn a diploma in Nutritional Therapy from Health Sciences Academy in London, England. Today, Sarah enjoys helping others by teaching healthy lifestyle changes through her personal consultations and with her regular contributions to the Doctors Health Press. Also, passionate about following her dreams in life, Sarah moved to France and lived in Paris for over 5 years where she earned a certification in beadwork and embroidery from Lesage (an atelier owned by Chanel). She then went on to be a familiar face sitting front row and reporting from Paris Fashion Week. Sarah continues to practice some of the cultural ways of life she learned while in Europe. They enjoy their food, and take the time to relax and enjoy many of life’s little moments. These are life lessons she is glad to have brought back home with her.


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