Show average length 0 of f life constantly on increase figures bakeh based on tile the census of 1120 1920 show that the expectation of life in tile the united states at birth Is years for males and for fe enles about 60 0 years ago it was only 40 years tho the world almanac quotes quoits dr louls louis dublin insurance statistician assaying as saying that the expectation cc of life has increased but the span of life has remained stationary ue lie states that 20 years have been added to the average length of human life since public health work began to bo be actively practiced in the early eighties of 0 f the last century Is true but this his t gain can ite be traced to the reduced mortality of infants and to the cutting down of the annl unnecessary cessare ind and preventable deaths of young people from typhoid fever diphtheria sear scar let lef fever smallpox and a host of other diseases which for the inist part persons persona under forty years of age improvement after tile the age of forty has been slight and almost altogether limited to women according to various estimates the total population of the world Is continuing to increase every year |