Expected Lifespan vs. Healthspan: Living Longer vs. Living Well

Hello everyone,

Today I'd like to talk about the difference between 'expected lifespan' and 'actual healthy lifespan,' and why it matters.

'Expected lifespan,' or 'life expectancy,' is a statistical estimate of how long a person is likely to live based on factors such as age, gender, race, and health conditions. In general, life expectancy has been increasing worldwide due to advances in medicine, hygiene, nutrition, and social welfare. For example, the global average life expectancy has risen from about 52 years in 1960 to about 72 years in 2019, according to the World Bank.

However, 'expected lifespan' does not necessarily reflect the quality of life or the health status of an individual. 'Actual healthy lifespan,' or 'healthspan,' refers to the number of years a person can live in good health, without significant physical or mental disabilities or chronic diseases. Unfortunately, the increase in life expectancy has not been matched by a similar improvement in healthspan, especially in some countries or populations. For instance, in the United States, the average life expectancy has declined for three consecutive years since 2014, partly due to the rise in deaths related to drug overdose, suicide, and obesity.

Therefore, it is important to focus not only on extending lifespan but also on enhancing healthspan, by promoting healthy lifestyles, preventing diseases, and improving healthcare systems. By doing so, we can help people not only live longer but also live better, with more vitality, independence, and happiness.

Thank you for listening.