How come some smokers get lung cancer and some never do?

Question by CoachTrip: How come some smokers get lung cancer and some never do?
and non smokers get lung cancer?
.
and if smoking merely increases the chances…..why is there so much hysterical anti-smoking feeling around?

Best answer:

Answer by serengeti_lion
Because it’s sort of like playing a game of gambling. Smoking doesn’t guarantee you will get lung cancer. But it greatly increases the odds that you will.

In the same way, not smoking does not guarantee that you will not get lung cancer. But it greatly reduces the odds that you will. Smoking is not the only cause of lung cancer. Exposure to other inhaled carcinogens, such as radon, can also play a role.

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