Watch Out for Warm Summer Nights

John Travolta and Olivia Newton-John sang about romance in “Summer Nights”, the opening song in the hit movie, Grease. But now, at 68, he, more so than she, may want to watch out for a different kind of summer heat. New research shows that warm summer nights increase the risk of heart-related death among men in their 60s. The study involved analysis of 39,912 deaths due to cardiovascular disease in England and Wales between 2001 and 2015. After controlling for other factors, a rise of 1° Celsius (1.8° Fahrenheit) in summer nighttime temperature was associated with a 3.1% increase in the risk of death due to cardiovascular disease among men aged 60 to 64 years.