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>The "now" is superfluous, completely fucking up the intent of the sentence. If it's so good to quit smoking, it should be good anytime. Why now? What about other times? Not so good? That's the other half of what's wrong with the sentence. And the obvious "when is that 'now'?" question - at the time when the sentence was composed, written down, printed, read for the first time, seen on a thrown away empty pack months later? It even isn't clear whether it's "quitting now" or "now reduces".

Interesting...