While you are documenting the progressive down fall of humans (at least since the 1940's) life expectancy of those humans (at least in the US, Canada, Japan and western Europe) has increased markedly; in the US from 48.3 years (for males) and 51.1 years (for females) in 1900 to 72.1 years (for males) and 79.0 years (for females) in 1990. How do you account for increased life expectancy within the framework of your environmental insults inflicted upon them during this time?

Lloyd