the body loses the ability to fight off mutation around the age of 60, from then on it
isn't so much that people get cancer, it is that not everyone does.
We were never intended to get sick and die, we were intended to find and walk out the plan He has for our lives and then be taken home like Moses, Enoch, Elijah, etc.
We are in a better position than they ever were with Christ indwelling us now, whereas the Spirit of G-d rested upon those in that time.
Come quickly, Lord Jesus