I knew a guy who thought there was a cloud cover over the earth until the days of Noah when it all came down. That was his explanation for the long lives talked about in the Bible becoming shorter. We used to call him Mr. Mystery. Does anyone know anything about vitamin A levels of the hunter-gatherer diet compared with today's diet? I get the idea from a Paul Pitchford book that the liver needs more vitamin A to deal with overeating, toxins, etc. He doesn't recommend commercial beef liver due to the fact that it holds the accumulated hormones, etc. Anyone know anything about dunaliella (an algae I think)? BTW, what does this telomere thing prognosticate for OUR lifespans? MJ