Is cancer only caused by radiation?

Mea culpa. :smack: Realized that just as soon as I posted.

Well then maybe there should be a minimum level of 5th grade(or minimum age for Dopers/Guests) IQ, or something of the sort.
The OP starts with an asertion which if patently false. It then goes from bad to worse. Lazy? Of course, what else. S.A.?
For starters there are, Google, Ask George, Dogpile, Yahoo, etc. etc.

KarlGuass:
You confused me with your post.
Reason #1 for cancer, you say:"
"1. Age - as we age so do our cells, i.e. every time a cell divides its DNA gets a bit altered (lengthened). The more alterations that occur, the greater the chance of a mutation arising that can contribute to the cell becoming cancerous. Bottom line is that aging itself can lead to cancer.

I agree with what you posted, but doesn’t DNA lose some of the end of the telomeres with each division? This would make them shorter, right?

Any cite for the longer DNA?

iamamoocher: You are quite right and I am quite embarrassed. I don’t know what I could have been thinking, although, five years ago, I was rather stupid.

Also given as “… when you have eliminated the impossible, whatever remains, however improbable, must be the truth?”

There is an invisible pink unicorn standing behind you right now. Go, on prove there isn’t. You can’t, can you!

(While you’re doing that, add some punctuation!)