“…While some of the factors showed stable associations with all outcomes (e.g., substance abuse), others did not. For example, physical activity is recommended for the prevention and coping with mental health problems (Arora & Grey, 2020; Diamond & Waite, 2020) and was associated with a better mental health in the pandemic (Petzold, Bendau, Plag, Pyrkosch, Mascarell Maricic, et al., 2020; Pieh et al., 2020; Stanton et al., 2020), but on a longitudinal perspective, it showed only a predictive value regarding the subjective evaluation of one’s anxiety as exaggerated and generating burdens in daily life. Moreover, for example, health‐related self‐efficacy showed stronger associations on the long than on the short run.…”