Given the following question, let's solve step-by-step. Yes / no, is the following a verifiable fact?
"White blood cell responsible for hurting you when you are healthy, causing illness."

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
White blood cell do not cause illness, they keep you from getting ill.
The final answer: no.