Cigarette smoking might impair memory and sleep quality

Jui Ting Liu, I. Hui Lee, Chieh Hui Wang, Kao Chin Chen, Chien I. Lee, Yen Kuang Yang

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)


Although nicotine can enhance some cognitive functions, cigarette smoking may impair memory and sleep quality. Our aim was to investigate the impact of cigarette smoking on memory and sleep quality in healthy smokers. Sixty-eight healthy participants (34 smokers and 34 controls) completed the Wechsler Memory Scale-Revised and a Chinese version of the Pittsburgh Sleep Quality Index. The Wilcoxon signed ranks test was performed, and Hochberg's Sharpened Bonferroni correction was applied for multiple comparisons. The results show that current smokers had a worse visual memory compared to nonsmokers. There was no significant correlation between the index of Wechsler Memory Scale-Revised and Fagerström test for nicotine dependence. Moreover, smokers had poorer sleep quality. Cigarette smoking might impair memory and adversely influence sleep quality.

Original languageEnglish
Pages (from-to)287-290
Number of pages4
JournalJournal of the Formosan Medical Association
Issue number5
Publication statusPublished - 2013 May

All Science Journal Classification (ASJC) codes

  • Medicine(all)


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