1.   One manufacturer has denied accusations that it added alkalizing substances such as ammonia to allow nicotine to be absorbed through the mouth as well as the lungs.

2.   The nicotine is absorbed through the mouth and not into the lungs, and the device helps lower nicotine levels and encourages smokers to quit, they said.

3.   The nicotine is absorbed through the mouth and not into the lungs, and the device helps lower nicotine levels and encourages smokers to quit.

4.   The nicotine is absorbed through the mouth and not into the lungs, the company said.

5.   When a smoker inhales tobacco smoke, the nicotine is absorbed by oxygenated blood and sent to the heart, then the brain.

6.   But the blood and urine studies showed that the Chinese-Americans tended to absorb less nicotine from each cigarette than either of the other two groups.

7.   The body absorbs nicotine through receptors in places like the brain and lungs.