An excellent point. This data was much harder to find, but I finally got it. You are correct in that infant mortality rates have had a huge impact on life expe

An excellent point. This data was much harder to find, but I finally got it. You are correct in that infant mortality rates have had a huge impact on life expectancy as a whole. An infant in 1900-1902 could expect 49.24 years, while one born in 2003 can expect 77.4. But non-infant life expectancy has risen pretty dramatically too. A 20 year old in 1900-1902 could expect to live another 42.79 years, while a 20 year old in 2003 could expect another 58.4 years. This trend continues the further up the age bracket you go. A 30 year old in 1939 could expect another 39.67 years, while that's up to 48.9 by 2003, a solid gain of 9 years. Of course, Boomers are not 20 in 2003, they were 20 somewhere between 1966 and 1984. So the gap between the Boomers and their parents is a bit smaller than that (although the gap between Millenials and the Greatest Generation is huge). By my very rough estimate, the gap between the Boomers and their parents life expectancy hovers around 4-7 years, depending on how large the age gap between the Boomer and their parent. The gap appears to get the biggest around middle age, presumably because of improvements to medicine and reductions in Tobacco usage. I tried to list out the data points I'm looking at, but it just didn't work in sentence form. Instead look at the raw data at [0]. Table 11 is my source, but I was just looking at all races and genders. Presumably one would see different results once you start breaking it down by demographics. 0. https://www.cdc.gov/nchs/data/nvsr/nvsr54/nvsr54_14.pdf https://www.cdc.gov/nchs/data/nvsr/nvsr54/nvsr54_14.pdf