*Mental Health Impact of Post-Infection Fatigue DOI: http://dx.doi.org/10.5772/intechopen.105813*

and economic issues that may trigger fatigue may subsequently cause mental health issues [22]. The history of pre-existing mental health problems may also aggravate the mental health issues activated by fatigue [21]. Mental health problems such as depression, anxiety, post-traumatic stress disorder, and sleep disorders are commonly related to symptoms of post-COVID-19 [23]. However, among people who have developed post-COVID-19 fatigue, the mental health problems are usually co-occurring and potentially codependent on post-COVID-19 fatigue [24]. A study on neuropsychological and neurophysiological correlates of fatigue in post-covid-19 patients supports that there was no significant correlation between apathy, depression, and fatigue. Although they were found to co-exist in post-COVID patients, they were not associated [25]. There is a paucity of literature on the direct impact of fatigue on mental health disorders. However, the effects on mental health were mainly a result of biological, psychosocial, and economic factors [25]. Reduced physical activity, which is an outcome of the chronic nature of post-COVID-19 fatigue influences the onset of or exacerbation of mental health problems [26]. Likewise, the mental component of fatigue, such as reduced motivation can influence developing mental health disorders [27].
