title: Cigarette smoking might impair memory and sleep quality.
abstract: 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.
authors: Department of Psychiatry, Changhua Christian Hospital Lutung Branch, Changhua 50550, Taiwan.
authors: Jui-Ting
authors: JT
authors: Liu
authors: I-Hui
authors: IH
authors: Lee
authors: Chieh-Hui
authors: CH
authors: Wang
authors: Kao-Chin
authors: KC
authors: Chen
authors: Chien-I
authors: CI
authors: Lee
authors: Yen-Kuang
authors: YK
authors: Yang
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008569:Memory Disorders / Q000209:etiology*; D012890:Sleep; D012907:Smoking / Q000009:adverse effects*