>>40525186 (OP)In 95% of cases, cancer is caused by sin (sex, smoking, drinking, obesity, etc.) For example, the STD HPV, that 80% of people are infected with, causes uterus and throat cancer.
[Only 5% of cancer are caused by the environment, e.g. radon]
In this age, people are more sinful than ever, and this is the reason why cancer is more common.
It's not a sacrifice, people sacrifice themselves by acting like dogs.