Through this survey, it is found that the average sleep quality PSQI of college students in five universities in Shanxi Province is 4.43±2.56. We defined PSQI>5 as poor sleep quality, and the poor quality of sleep students accounted for 28.0% of the survey population. Compared with China, the results of our study are basically the same as those of Mongolia college students (27.8%[16], but significantly lower than those of Taiwan college students (54.7%)[17]. Compared with other countries, our results are significantly lower than those of Ethiopian students (55.8%)[18] and American Midwest college students (65.9%)[19]. The reason for this difference may be due to differences in the definition of sleep quality (using scales or scores), socioeconomic, geographic climate, eating habits, sleep habits, and differences in sociodemographic characteristics such as student age.
The sleep quality of medical students is better than that of non-medical students. This is inconsistent with the results of Shi[20] and Brick[21]. This may be that all the medical students we surveyed came from Shanxi Medical University. Because the school has the bedtime regulation of turning off the lights at a fixed time, it will directly interfere with the sleeping time of medical students. It may also be that after receiving medical knowledge education, college students have an impact on the cultivation of healthy sleep habits and put forward higher standards for their own health. Therefore, medical students pay more attention to maintaining physical and mental health and understanding how to maintain healthy living habits and ways. In addition, if they encounter sleep problems, medical students are more likely to self-intervention and improvement, rather than poor self-demand and poor sleep management, which results in the difference between medical students and non-medical students.
Through this survey, it is found that the total score of interpersonal sensitivity of college students in Shanxi Province is 17.72±6.45. In this study, a score of > 27 was used to detect interpersonal sensitivity.9.0% of the respondents are college students with interpersonal sensitivity. Our results are similar to those of Beijing University students in China[22]. The score is higher than that of Greek college students[23]. This may be due to the fact that Chinese college students are relatively dependent on their parents’ family interpersonal relationship when they are young. When they enter university, they are faced with new environment and people, and they are likely to be unable to deal with this interpersonal communication problem.
In terms of specialty, we found that the interpersonal sensitivity score of medical students was lower than that of non-medical students. This may be due to the emphasis on cultivating doctor-patient relationship in medical colleges, which indirectly has a positive impact on interpersonal communication, leading to this difference.
In terms of grade, college students of different grades have different interpersonal sensitivity scores. Grade 3 scored the highest and Grade 4 scored the lowest. After comparisons, it was found that there were significant differences in scores between Grade 4 and Grade 1, Grade 2 and Grade 3, and there were significant differences in scores between Grade 3 and Grade 5.This may be due to the fact that our survey time is approaching the end of the semester and that Grade 3 students need to face such events as the final exam and the entrance examination for postgraduates, which results in greater pressure and tense interpersonal relationships, so their scores are also higher. As the graduation season is approaching, Grade 4 and Grade 5 students are facing less pressure and better interpersonal relationships. And with the progress of college life, college students are more and more adapted to interpersonal communication, so senior college students have lower interpersonal sensitivity scores.
The main purpose of this study was to investigate the relationship between interpersonal sensitivity and sleep quality. The results of this study show that the participants’ interpersonal sensitivity is indeed related to some dimensions of sleep quality, including daytime dysfunction, sleep disorders, subjective sleep quality, sleep latency and sleep time. Through correlation analysis, it is found that there is a positive correlation between PSQI score and interpersonal sensitivity score. The higher the PSQI score, the higher the interpersonal sensitivity score, indicating the more serious the interpersonal sensitivity. People with sensitive interpersonal relationships have worse sleep quality. This is consistent with Wang[16].
Although the influence of interpersonal relationship on people is ubiquitous nowadays, interpersonal relationship is still vulnerable to many factors. As the results of this study show, sleep quality has a significant impact on interpersonal relationships. Past studies[24] have shown that insomniacs are more likely to show more pain and discomfort in communicating with others, and are more likely to wake up during sleep, thus aggravating insomnia and sleep disorders. In the study of Aanes[25], it was found that interpersonal stress was significantly correlated with sleep problems at night and daytime sleepiness. This may be due to the negative effects of interpersonal sensitivity on sleep at night and daytime life. One possible explanation for this result is that negative feelings of interpersonal sensitivity or social discomfort can trigger reflection and arousal during sleep, causing brain alertness, thus interfering with the process of falling asleep, and the long duration of interpersonal sensitivity will lead to changes in sleep patterns and eventually lead to sleep quality problems.
There is also literature showing that sleep problems can predict interpersonal disorders. Mcglinchey found that sleep problems can predict more interpersonal stress and lead to impaired interpersonal function[26]. This suggests that a poor sleep quality can affect interpersonal relationships, increase interpersonal sensitivity and weaken self-regulation. Similar results were found in study of Christian[27]. Greater interpersonal conflict was also associated with sleep disorders[28].
This may be due to lack of sleep, resulting in the decline of language organization ability and resulting in poor interpersonal communication, which indirectly leads to interpersonal barriers[29] .
Of course, we should also pay attention to interpersonal sensitivity, which can also affect sleep quality. Tafoya[30] reported that interpersonal sensitivity was found to be the best predictor of sleep differences. This suggests that there is an interaction between interpersonal sensitivity and sleep quality. If there is a problem on one hand, the other is also likely to be affected. If not handled in time or improperly, it is likely to form a vicious circle.
This study is different from many earlier studies on interpersonal relationships, which are usually limited to the study of factors that can negatively affect interpersonal relationships. In contrast, the study on the relationship between interpersonal relationships and sleep quality dimensions helps to clarify which dimensions of sleep quality can affect interpersonal sensitivity, so specific measures may be proposed to improve the impact of sleep quality on interpersonal sensitivity.
We explored the relationship between the factors of sleep quality and interpersonal sensitivity. We found that daytime dysfunction, sleep disorder, subjective sleep quality, sleep latency and sleep time entered regression equation. The explanatory rate of the five factors on interpersonal sensitivity score was 17.5%. Among them, daytime dysfunction has the greatest impact on interpersonal relationships. This may be due to a good sleep quality, which can effectively relieve stress and tension, thus affecting interpersonal relationships. If the quality of sleep is poor, college students are more likely to have negative emotions such as uncomfortable and inferiority complex when communicating with others, and affect their daily life. It produces more pressure, which has a negative effect on interpersonal communication. There is evidence that in adolescents with shorter sleep duration, the increase in daily interpersonal stress interacts with the decrease in sleep duration[31]
In addition, Holdaway[6] found that children's sleep was associated with the quality of teacher-student relationship. The worse the relationship, the more likely they were to have daytime sleepiness. This suggests that interpersonal relationships may affect our sleep quality from childhood.
In college life, college students pay more attention to interpersonal relationship. Because interpersonal relationship is a basic social need, college students gradually transfer interpersonal relationship from family to people outside family when they communicate with others in their study and life. In universities, the main interpersonal relationship is with roommates, classmates and teachers. If interpersonal relationship is not well handled, it can easily lead to physical and psychological problems. In addition, it also reflects a person's social ability. If a person does not have a good interpersonal relationship, it will easily lead to the difficulty of interpersonal negotiation in daily life. Bad interpersonal relationships can easily lead to depression, which will affect the quality of sleep. On the contrary, college students with poor sleep quality are more likely to face others with inadequate energy, sleepiness and other discomfort when communicating, which results in the sensitivity of interpersonal relationship between them. And students with poor sleep need more time to fall asleep, which can easily cause stress and discomfort, and thus more sleep disorders, such as wake-up in dreams, nightmares, etc. If this state lasts too long, it is likely to transfer this sleep pressure to interpersonal interaction, thus causing interpersonal sensitivity.