Whether you've gone cold turkey or you're trying to severely limit your nicotine intake, there will be a myriad of other triggers just waiting for you.

Studies of people weaned to lower-nicotine cigarettes show that they overcompensate for a few weeks, but most then seem to adjust to a lower level of nicotine intake.

Dr. Benowitz says his best estimate is that when nicotine intake drops below about 5 milligrams a day, smokers begin to suffer withdrawal.

However, smokers may inhale more in order to compensate for reduced nicotine intake and may eventually take in as much, or possible more tar [6].

The study noted that other research has found that people who switch from high-yield to low-yield cigarettes often compensate to maintain their usual levels of nicotine intake.

Nicotine withdrawal is the effect that nicotine dependent individuals feel after they discontinue or decrease nicotine intake.

In another study, women who sampled both standard and low-nicotine cigarettes noted less of a difference in their enjoyment and perceived nicotine intake than male participants did.

Chronic nicotine intake via nicotine patches results in an increased response to standard antidepressants.

When you finally reduce your nicotine intake to zero, you still may have some symptoms of nicotine withdrawal.

Cotinine is a byproduct of the breakdown of nicotine and indicates levels of nicotine intake.