For example, in Japan, the average life expectancy for men is 81.6 years, while for women it is 87.7 years. In Switzerland, the average life expectancy for men is 83.4 years, while for women it is 85.9 years. On the other hand, in some African countries such as Sierra Leone and the Central African Republic, the average life expectancy is below 50 years.
Overall, women tend to have a longer life expectancy than men in most countries, with the average difference being around 5-10 years. This is attributed to a number of factors, including biological differences, lifestyle factors, and access to healthcare.
Life expectancy is an important indicator of the overall health and well-being of a population, and it is influenced by a variety of factors such as nutrition, education, income, environmental conditions, and healthcare systems.