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Updated: May 11, 2026
06:07
Cigarette Smoke Exposure in Mice using a Whole-Body Inhalation System
Published on: October 22, 2020
Cigarette smoking might impair memory and sleep quality
Jui-Ting Liu1, I-Hui Lee, Chieh-Hui Wang
1Department of Psychiatry, Changhua Christian Hospital Lutung Branch, Changhua 50550, Taiwan.
Summary
Cigarette smoking impairs visual memory and sleep quality in healthy adults. Nicotine dependence levels did not correlate with memory performance in this study.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Sleep Medicine
Background:
- Nicotine, a component of cigarettes, has known cognitive-enhancing effects.
- However, cigarette smoking itself is associated with negative health outcomes, including potential impacts on cognition and sleep.
Purpose of the Study:
- To investigate the effects of cigarette smoking on memory and sleep quality in healthy individuals.
- To compare cognitive function and sleep patterns between smokers and non-smokers.
Main Methods:
- Sixty-eight healthy participants (34 smokers, 34 controls) were recruited.
- Participants completed the Wechsler Memory Scale-Revised (WMS-R) and the Pittsburgh Sleep Quality Index (PSQI).
- Statistical analysis included the Wilcoxon signed ranks test with Hochberg's Sharpened Bonferroni correction.
Main Results:
- Smokers demonstrated significantly poorer visual memory compared to non-smokers.
- No significant correlation was found between WMS-R scores and the Fagerström Test for Nicotine Dependence.
- Smokers reported significantly lower sleep quality on the PSQI.
Conclusions:
- Cigarette smoking appears to negatively impact visual memory function in healthy individuals.
- Smoking is associated with diminished sleep quality.
- The findings suggest a detrimental effect of smoking on cognitive and sleep health, independent of nicotine dependence levels.
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