There is a poster here who knows several Doctors in Cancer research. Maybe with American Cancer Society. I can’t remember.
She said they think that there is a strong genetic component and gave this illustration which still sticks with me:
You could swim in asbestos and not get cancer if you dont have the genetic weakness.
I’ve often thought that as well.
The opposite of that is my Mother-in-law’s family.
Cancer has killed all her brothers, 5 of them, but all her sisters, 5 of them, are still alive...........