[sp332]

Other research has already found an association between caffeine intake and lower incidence of cancer in humans. http://www.cancerletters.info/article/S0304-3835%2808%290066... So the research doesn't seem to transfer at all.

[CanSpice]

Well, this article states that caffeine shortens telomeres, and shortened telomeres are a hallmark of aging. Lengthened telomeres are associated with cancers. This seems to imply that the research done in this article (on yeast) correlates with the research you linked.