In the newest Question of Strength for August there is a little tidbit about Biosignature and cancer:
I know some of what CP says is kind of out there, but I would love to go to one of the Biosignature seminars.
"And for crying out loud. Don't go into the pain cave. I can't stress this enough. Your Totem Animal won't be in there to help you. You'll be on your own. The Pain Cave is for cowards.
Pain is your companion, don't go hide from it."