Life expectancy varies significantly across different parts of the UK, ranging from 80.8 years in Kensington and East Dorest to 69.3 years in Glasgow City. Areas with the highest life expectancies tend to be affluent parts of southern England, while parts of Scotland and northern England have the lowest life expectancies. Factors like income levels, access to healthcare, and general health and lifestyle habits may help explain the differences in life expectancy shown across UK regions.