What is the reason for cancer?

cancer - Don’t Smoke
@brwasana (582)
Sri Lanka
December 7, 2006 7:05am CST
I think there are so many reason. what u think about that
1 response
@babray06 (1787)
• India
7 Dec 06
There are many reasons for cancer but I feel it is related to food habit. I am not sure though but I have this feeling. Too much of non-natural food may be the cause of cancer.