Well... the tolerance increases faster than when you started, but it all depends on how frequently you smoke... if you smoke everyday, surely your tolarance will increase very fast. Yet if you smoke only once each 3-4 days (thus leaving time to your body be sober during a reasonable amount of time between the smoking sessions), your tolerance will be FAR lower... and will keep low while you smoke only a few times in a week.

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"Everything we do, everything we are, rests on our personal power. If we have enough of it, one word uttered to us might be sufficient to change the course of our lives. But if we don't have enough personal power, the most magnificent piece of wisdom can be revealed to us and that revelation won't make a damn bit of difference." Don Juan Matus - Tales of Power