Is There a Time Related Mutation That Will Accelerate Mutation Rate?

There's a one element is seems to be related to age more than anything else. But then there also seem to be additional ways you can cumulate mutations that might might reflect life style. A, for example, we are interested in looking at the brains of football players who have died with a chronic dramatic encephilopathy That creates dimension. And we suspect that that kind of brain injury will accelerate the rate of mutations.