Life-span is known as a matter of great concern for the general public in our society from ancient time to now. According to the above table we can obtain some information about the life-span from 1911 to 2001 in the UK.

　　In 1911, only 73 men and 100 women were 100 or more 100 years old. However, in 1941, the number of people who can reach to 100 years old increased to 449 that includes 132 males and 317 females. Then, the number reached to 2332 in 1971 which contains 287 males and 2035 females. In 2001, the number of males is about 536 while approximately 4085 are females Another important phenomenon is that in 2001 the number of females increased 40 times than the males’ number in 1911 while males only went up about 7 times .

　　Judging by the figures, we are fully justified in declaring that with the development of the science and technology, the people’s life-span is increasing slowly and most of them are women.