“The average life span can’t be the yardstick against which to measure an old person’s health. The increase in average life expectancy is merely due to the ability of science and medicine to delay death. As the focus is on prolonging life without having fully considered its quality, an old person living in a society with an average life span of one hundred years is like a prophetic shaman who forgets to include “pretty and young” when praying for eternal life and forever ends up with a wrinkly face and a hunched back.”