رابطه صفت-خشم و اختلال در خواب در مردان و زنان میانسال

Objective The present study was performed to determine whether high levels of trait-anger (T-Anger) are independently associated with sleep disturbances and quantitative and qualitative measurements of sleep in middle-aged adults. Methods Enrolled in the study were 2404 men and 2291 women derived from the Korean Health and Genome Study (KHGS), which is an ongoing population-based prospective study. The Spielberger Trait Anger Scale was used to measure T-Anger. Results Sleep disturbances, including difficulty in initiating and maintaining sleep (DIS and DMS, respectively) and early morning awakening (EMA), significantly increased with increasing levels of T-Anger (P<.05 by test for trend). Nonrestorative feelings in the morning and excessive daytime sleepiness were also strongly associated with higher levels of T-Anger. After adjusting for other potential risk factors, the high and/or moderate T-Anger showed 40% to 70% increases in the odds for sleep disturbances. Conclusion The present study provides evidence that high levels of T-Anger are independently associated with symptoms of disturbed sleep in middle-aged adult population.

Sleep disturbance has been well recognized as both an early sign of and even the risk factor for depression [1]. To date, the occurrence of sleep disturbance has been largely understood within the behavioral model of insomnia [2]. Within the model, sleep disturbance is caused by the interaction between predisposing and precipitating factors. Over the last three decades, although a number of empirical and epidemiological studies have been performed to establish the predisposing factors, it was still limited that personality characteristics may confer risk. Moreover, most researches have focused on depression and anxiety [3], [4], [5] and [6]. Although anger is one of the basic emotions [7] and [8], and the deleterious consequences of anger/hostility and anger expression on physical health have been well reported [9], [10] and [11], few studies have been performed on the impact of anger on sleep disturbance [12], [13] and [14]. Therefore, in the current study, we hypothesized that higher level of trait-anger (T-Anger) is independently associated with sleep disturbances and other quantitative and qualitative measurements of sleep in the middle-aged Korean men and women.