For all of our obesity, poor exercise habits, bad nutrition, and other woes, Americans keep living longer and longer. From Life Expectancy Hits Record High in America – washingtonpost.com:
The overall U.S. life expectancy of 78.1 years was up 0.3 years from 2005. Life expectancy for women was 80.7 years, and for men, 75.4 years. The disparity between the sexes — 5.3 years — has been declining since it peaked at about 8 years in 1979.
White women had the longest life expectancy, at 81 years, followed by black women (76.9 years), white men (76 years) and black men (70 years). The gap between men and women is markedly greater in blacks (6.9 years) than in whites (5 years).
Cf. Psalm 90:10:
The days of our years [are] threescore years and ten; and if by reason of strength [they be] fourscore years, yet [is] their strength labour and sorrow; for it is soon cut off, and we fly away.