Unfortunately, the Surgeon General's report conflated these two types of changes and as a result, its conclusion that the introduction of the filter actually increased cancer risk is inaccurate and in conflict with the scientific evidence.

What is a defective cigarette, you may ask. Well, according to the FDA, a cigarette that causes lung cancer, heart disease, emphysema, kidney cancer, or leukemia is not defective. Those are cigarettes which are working the way they are supposed to work!

In fact, this is precisely what Trueba et al. demonstrated in a of changes in exhaled nitric oxide levels in 41 healthy college students.

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