As the Thymus shrinks, cancer risk increases
We would like to draw your attention to a publication that is available to all. The researchers claim that DNA mutations are not as important a risk factor for cancer than the age-related decline in the thymus.
Repairing damage
Cancer is caused by mutations that are created when DNA is damaged. We are constantly repairing damage to our DNA.
Source:
https://www.leafscience.org/cancer-risk-rises-as-the-thymus-shrinks/