Question: How alife expectancy increased or decreased in South Korea since 1950?
About the article "South Korea", section "Public health and safety".

Candidate passages:
Although life expectancy has increased significantly since 1950, South Korea faces a number of important health-care issues.
Foremost is the impact of environmental pollution on an increasingly urbanized population.
According to the Ministry of Health and Welfare, chronic diseases account for the majority of diseases in South Korea, a condition exacerbated by the health care system’s focus on treatment rather than prevention.
The incidence of chronic disease in South Korea hovers around 24 percent.
Approximately 33 percent of all adults smoke.
The human immunodeficiency virus (HIV) rate of prevalence at the end of 2003 was less than 0.1 percent.
In 2001 central government expenditures on health care accounted for about 6 percent of gross domestic product (GDP).
South Korea is experiencing a growing elderly population, which leads to an increase in chronic degenerative diseases.
Majority of health care professionals treat patients on curative, rather than preventive treatments, because of the lack of financial incentives for preventive treatments. 
Although life expectancy has increased significantly since 1950, South Korea faces a number of important health-care issues.
Foremost is the impact of environmental pollution on an increasingly urbanized population.
According to the Ministry of Health and Welfare, chronic diseases account for the majority of diseases in South Korea, a condition exacerbated by the health care system's focus on treatment rather than prevention.
The incidence of chronic disease in South Korea hovers around 24 percent.
Approximately 33 percent of all adults smoke.
The human immunodeficiency virus (HIV) rate of prevalence at the end of 2003 was less than 0.1 percent.
In 2001 central government expenditures on health care accounted for about 6 percent of gross domestic product (GDP).
The suicide rate in the nation was 26 per 100,000 in 2008, the highest in the industrialized world.
Young South Korean males were found to be the tallest in all of East Asia, resulting from healthy living conditions, economic development and changes in food culture.
Based on the Asia-Pacific Advisory Committee on Influenza (APACI), South Korea ranked the highest of influenza vaccination in Asia with 311 vaccines per 1,000 people.
South Korea has the highest suicide rate in the developed world.
During the past 60 years the demographic situation of Libya changed considerably.
Since the 1950s, life expectancy increased steadily and the infant mortality rates decreased.
As the fertility rates remained high until the 1980s (the number of births tripled between 1950–55 and 1980–85), population growth was very high for three decades.
However, after 1985 a fast decrease in fertility was observed from over 7 children per woman in the beginning of the 1980s to less than 3 in 2005-2010.
Because of this decrease in fertility the population growth slowed down and also the proportion of Libyans under the age of 15 decreased from 47% in 1985 to 30% in 2010. 
 Italy  Alife, Campania, a "comune" in the Province of Caserta  
 variation over time.
The following information is derived from "Encyclopædia Britannica", 1961. and other sources, some with a questionable accuracy.
Unless otherwise stated, it represents estimates of the life expectancies of the population as a whole.
In many instances, life expectancy varied considerably according to class and gender.
Life expectancy at birth takes account of infant mortality, but not pre-natal mortality.
Life expectancy increases with age as the individual survives the higher mortality rates associated with childhood.
For instance, the table above listed the life expectancy at birth in Medieval Britain at 30.
Having survived until the age of 21, a male member of the English aristocracy in this period could expect to live:  1200–1300: to age 64  1300–1400: to age 45 (due to the impact of the bubonic plague)  1400–1500: to age 69  1500–1550: to age 71 In general, the available data indicate that longer lifespans became more common recently in human evolution.
This increased longevity is attributed by some writers to cultural adaptations rather than genetic evolution, although some research indicates that during the Neolithic Revolution natural selection favored increased longevity.
Nevertheless, all researchers acknowledge the effect of cultural adaptations upon life expectancy.
During the early 1600s in England, life expectancy was only about 35 years, largely because two-thirds of all children died before the age of four.
The life expectancy was under 25 years in the Colony of Virginia, and in seventeenth-century New England, about 40 per cent died before reaching adulthood.
During the Industrial Revolution, the life expectancy of children increased dramatically.
The percentage of children born in London who died before the age of five decreased from 74.5% in 1730–1749 to 31.8% in 1810–1829.
Public health measures are credited with much of the recent increase in life expectancy.
During the 20th century, the average lifespan in the United States increased by more than 30 years, of which 25 years can be attributed to advances in public health.
In order to assess the quality of these additional years of life, 'healthy life expectancies' have been calculated for the last 30 years.
Since 2001, the World Health Organization has published statistics called Healthy life expectancy (HALE), defined as the average number of years that a person can expect to live in "full health", excluding the years lived in less than full health due to disease and/or injury.
Since 2004, Eurostat publishes annual statistics called Healthy Life Years (HLY) based on reported activity limitations.
The United States of America uses similar indicators in the framework of their nationwide health promotion and disease prevention plan "Healthy People 2010".
An increasing number of countries are using health expectancy indicators to monitor the health of their population.