I haven't touched cancer much, since I almost found the cure and all.. It was disappointing to be so close and then have my clouds dissipate.... (Only relevant to BBC)
Very interesting links about how cancer is in everybody right from birth.
... it says anything can really set the cancer off - Which works with my theory of "bumping" I figure if I live life in such a way that I don't excuse myself from the pack, and as such am occasionally bumped and pushed or nudged... So long as I move steady in the pack it feels right.
(Just physically. I think cancer is very physical)