In addition, working life is often hectic and demanding (see Eurofound, 2019, for an overview), with less time for breaks during work. Leisure time after work and workday breaks constitute the most important settings for recovery from work (Sonnentag et al., 2017). Although recovery from work stress has recently received a lot of research attention (see Sonnentag et al., 2017, for a review), there are still gaps in research. The present study addresses some of these. First, it focuses on internal recovery occurring during breaks at work, which has received much less attention than external recovery occurring during leisure time after work. Second, we pay attention to the role of aging in recovery, which has been an under-examined issue, although the challenges of an aging working population have been widely recognized (e.g., Ilmarinen, 2001; Truxillo, Cadiz, and Hammer, 2015). Third, the target group in our study are teachers, whose recovery from work stress has seldom been examined. One exception is the interview study by Skaalvik and Skaalvik (2015), in which middle-aged teachers reported problems in recovering during weekends and vacations. Another longitudinal study showed that teachers had difficulties with unwinding during weekends in the fall term but not during the spring term, which, in contrast to the fall term, included longer breaks from work (Kinnunen, 1989). Teaching is a highly stressful occupation (e.g., Klassen, 2010; Skaalvik and Skaalvik, 2017; Tang, Leka, and MacLennan, 2013) and it is especially important to recover from work when job stressors are high (Sonnentag, 2018). Job stressors reported by the teachers themselves seem to include the following: 1) poor quality of interaction (e.g., conflicts, misbehavior, lack of support) with pupils, colleagues, and school administration; 2) high time demands and large amount of work; 3) inadequacies in the working conditions and prerequisites of work (e.g., problems with indoor air, lack of materials and equipment); and 4) problems related to social status, professional pride, and salary (e.g.,