3 ms·Wow! Well, I guess given Japan's life expectancy of 84, he's got half of his life still.by danuker 4y agoWow! Well, I guess given Japan's life expectancy of 84, he's got half of his life still.astrange 4y agoLife expectancy is counted from birth, not age 40.droidist2 4y agoThat makes it even higher since infant mortality drags down the averages.postalrat 4y agoYour odds of making it to 84 only go up the older you get.