What I think it would reduce is the prevalence of stress and anxiety (contributants to premature deaths, heart attacks, etc etc) in the urban population constantly, unexpectedly, exposed to emergency sirens.
Should that be the case wouldn't you expect to see lower life expectancies in London, whereas actually
Should that be the case wouldn't you expect to see lower life expectancies in London, whereas actually
The rate of growth in life expectancy in London continues to surpass that occurring in other regions and the constituent countries of the UK. This has resulted in London now having the highest life expectancy for both males and females among regions in England.
https://www.ons.gov.uk/peoplepopulationandcommunity/healthandsocialcare/healthandlifeexpectancies/bulletins/lifeexpectancyforlocalareasoftheuk/between2001to2003and2017to2019#life-expectancy-for-local-areas-of-the-uk-data