[Margerie]

Debbie-

Thanks for calling me out! Yes- I would say that it is not right for me to say "it is pretty well-known..." I was thinking about the incidence breast cancer of women living at altitude (mountains of Japan, other rural areas, indigenous populations) are low, versus the women with a very high incidence (Marin, CA) which is at or below sea level. Of course, more than just altitude playing with these numbers.

Anyway, like I said before- love to speculate.