Glasgow has the shortest life expectancy in the UK for men and women aged 40.
Guardian Carers studied data from the Office for National Statistics (ONS) to reveal the life expectancy of those aged 40 across each local authority in the UK.
Women in Glasgow are expected to live another 39.3 years at 40, nearly ten years less than their female counterparts in Kensington and Chelsea, while for men this number is just 34.8.
The age of 40 is used as a starting point for calculations as it marks the typical midway point of an average lifespan.
The neighbouring constituency of West Dunbartonshire comes in second for women who, on average have 39.8 years left to live after the age of 40, with Inverclyde in third place with 40.12 years.
For for men, Blackpool places second after Glasgow at 35.96 years and West Dunbartonshire comes third at 36.04 years.
Dundee has the fourth lowest life expectancy for men with 36.2 years but is higher for women at 40.7.
Women aged 40 in North Lanarkshire have, on average, 40.4 years left to live while men have 36.8 years.
Inverclyde male residents have 36.5 years, making these the areas with the fifth lowest life expectancy in the UK for women and men.
Ranking as the area with the tenth highest life expectancy after the age of 40 is East Ayrshire for women with an average of 41 years left to live and 37.3 for men.
At the other end of the scale, a 40-year-old woman living in Kensington and Chelsea has the highest remaining life expectancy compared to any other area of the UK. For women living in this borough, the average life expectancy from the age of 40 is 48.6 years more. Male residents in Westminster have an average of 45.5 years more from the ages of 40, the highest amount for men in the UK.
The differences have been highlighted as a reflection of growing inequalities across the UK.
A spokesperson for Guardian Carers said: “Women living in Kensington and Chelsea have an extra expected 9.3 years left to live compared to those in Glasgow.
“The disparities seen between areas of the UK in this analysis could highlight major problems in social, economic or health-related factors. It also shines a light on the finding that women across the UK are expected to live longer than men.
“The age of 40 marks the typical midway through an average lifetime, and it is fascinating to see how many years people can expect to live further, in each location.”