date from ancient times, human life expectancy has been greatly improved. According to archaeologists,mac brushes 50 million to 20 million years ago, Peking Man is about the average life expectancy is only 17 years old. After entering civilization of human society, the average life expectancy has lengthened. According to the data confirmed that the Roman people are 15 to 30 years of age; medieval England, the average life expectancy is estimated at 33 years of age vibram five fingers; 20 WORD version of the World Health Books \years old. According to UN statistics, in 1995, the world average life expectancy has reached 65 years of age. In 2007, the world's longest life expectancy in Japan, the average 79-year-old men, women average 86 years of age.
In China, in 1947 the average life expectancy was 35 years old in 2007,mac makeup increased to 72.5 years (male 71, female 74 years). From the above figures we can see thousands of years, human life expectancy increased by several times. However careful you may have found this is actually greatly improved the average life expectancy. In ancient times, the reason why the average life span of only three or four years old, mainly due to medical backward,north face denali backward, especially maternal and child health, leading to infant mortality was higher in minors, pulled down the average life expectancy. Meanwhile, long-term war is also a factor in lower life expectancy. And then the highest human life and modern, and there is not much difference.
can be seen that raising the level of human life and advances in medical technology, but to reduce the incidence of premature death in human early, so that more people can close the life natural death, and the highest human life and not very greatly enhanced.
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