[00:00.00]Health Gains in Developing countri

[00:03.00]From the graph we can see the health gains in developing countrie

[00:08.93]In 1960,the average life span was only 40 year

[00:15.26]In1990.after thirty years,the life expectancy rose to 6

[00:21.16]At the same time ,with the life expectancy going up,infant mortality is coming dow

[00:29.47]In 1960,the infant mortality was 200 deaths per 1,000 birth

[00:36.15]That is ,about 200 infants died at birth among the 1,000 babies bor

[00:43.91]In 1990,the infant mortality declined to 100 deaths per 1,000 birth

[00:53.13]What are the reasons for this situation?I think it lies in three respect

[01:01.00]First,thanks,to the advances in medical technology,people in developing countries are receiving better medical care than befor

[01:11.65]Second,with the development of the economy,peopoe are better off toda

[01:17.61]So they pay more attention to the nutrition of their foo

[01:22.86]Third,owing to the increasing awareness of environmental protection,governments are taking more measures to deal with the problem of pollutio

[01:35.82]All of these improvements in turn do good to one's health and certainly extend his life tim

[01:44.12]That's why in developing countries life expectancy is on the rise and infact mortality on the decline.