Reply #15: And generations failed to survive, too.

[LeftishBrit]

100 years ago, the average life expectancy was under 50. A lot of this was due to infant mortality, but even those who survived childhood didn't usually live to advanced old age. People didn't have to worry so much about Alzheimers, because few people lived to the age where it's common.

I certainly don't believe in jumping from one new diet to another, on the basis of a single study with mice; but I also don't think that we should use health practices of the past as a model for the present.