>>14178402Cancer is a result of at least two mutations. One of your tumor suppressor gene and an oncogene. This isn't just "cell reproduction mechanism going crazy" like your midwit brain understood it from a youtube video.
It is your body failing at two things at the same time. First the mutation in the tumor suppressor gene doesn't allow your body to destroy precancerous cells and then the mutation in the oncogene causes the uncontrolled liberation of growth factors.
Cancer isn't as common as you think. Most people that develop it have clear family ties (BRCA2, MEN, intestinal polyposis, etc. etc.). A completely en novo cancer is actually rare. It is almost exclusively dictated by oxidative stress and chronic inflammation (aka you're a fat fuck) and chronic external factors like smoking, toxins, food, alcohol etc.
The man in the OP would probably not develop cancer unless he inherited it, which is unlikely. Even if he lived until 70, he would probably still not develop cancer.
