## 6 Conclusions  
### Summary of Key Findings  
Web 2.0 has become an everyday reality, and SNSs are recognized as useful mediums for communication and information sharing that have both positive and negative influences on society and individuals. To date, researchers have extensively examined the positive effects of SNSs, but the various negative impacts of SNSs have become increasingly visible on both individual and societal levels. Regardless of the impacts of SNSs, as the number of users increases, the amount of time individuals spend on SNSs interacting with other people increases; this raises concerns about the side effects of using SNSs. Thus, in this study, we set out to investigate several external factors that cause SNS fatigue, which increases individuals' living disorders. We collected data from 579 SNS users and examined the relationships between the proposed constructs. Our findings can be summarized as follows. First, irrelevant information overload and engagement had a significant positive impact on SNS fatigue. In other words, dealing with excessive irrelevant information often causes users to waste considerable time trying to find the information they seek, which can increase user fatigue. In addition, users who are immersed in SNSs experience increases in both SNS use time and SNS fatigue. These results are consistent with the findings of [PERSON] et al. (2016), [PERSON] et al. (2016), and [PERSON] et al. (2016). Second, SNS users with strong commitments to maintaining their reputations experience increased SNS fatigue. SNSs have the advantage of expanding social relations through user profiles and information sharing. Many SNS users constantly upload and share useful information with others to enhance their reputations. In fact, [PERSON] and [PERSON] (2016) claimed that SNS users who currently have good reputations want to maintain the status quo by frequently updating information on their accounts, and this frequent activity eventually becomes a source of stress for them. Furthermore, [PERSON] et al. (2016) argued that SNS users with good reputations make significant efforts to maintain their reputations, which eventually increases the levels of fatigue they experience. From this perspective, prior studies ([PERSON] et al., 2016) found that maintaining good reputations on SNSs is the greatest advantage for SNS users in influencing others. However, those who want to maintain good reputations undergo considerable stress, resulting in high levels of SNS use-related fatigue. Meanwhile, our findings showed no significant relationship between open reachability and SNS fatigue, implying that SNS users do not care much about incoming contacts from others because they can ignore them if they want to. This finding aligns with the results of prior studies e.g., ([PERSON] et al., 2016; [PERSON] et al., 2016) showing that many SNS users want to use SNSs for their own purposes and from their own points of view. For this reason, they can exercise control over decisions about using the information shared by others on SNSs. This suggests that open reachability does not substantially affect SNS users' fatigue because SNS users, even those bombarded with large amounts of information or contacted by strangers, can control what they pay attention and what they ignore. The relationships between SNS fatigue and living disorder, and between living disorder and reduced SNS use intention were all significant. The former two can lead to negative psychological states such as stress and fatigue when the amount of information generated during the process of using SNSs or the troublesomeness, irritation, and burden of managing the social network increases. In other words, SNS use can have negative impacts for individuals when it becomes a part of their everyday lives. These findings are consistent with the results of previous research ([PERSON] et al., 2016) showing that excessive use of certain information technologies can negatively impact individuals' lives when they reach mental and physical exhaustion.