{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T06:51:38Z","timestamp":1776840698911,"version":"3.51.2"},"reference-count":111,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T00:00:00Z","timestamp":1776816000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Digit. Health"],"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Vacations reliably improve indicators of mental health, largely by providing relief from work-related stress. Low levels of work-related rumination, a key transdiagnostic factor linked to burnout and depression, are considered prerequisites for successful recovery both during vacations and in daily working life. However, such benefits are typically short-lived, with a rapid \u201cfade-out\u201d upon return to work. To address this challenge, we developed Holidaily, a low-threshold, gamified mobile health intervention designed to translate recovery science into daily digital practice and sustain the mental health gains of vacations.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>In a randomized controlled trial (RCT), Holidaily was evaluated as a digital mental health intervention targeting work-related rumination, the primary outcome. Assessments were conducted two weeks prior to vacation and two weeks after the return to work, before waitlist controls were granted access. Given the novelty of the research, a wide range of exploratory outcomes was also assessed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      A total of 190 workers from the general population were randomized to either the intervention (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200991) or waitlist control group (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200999). ANCOVA, in accordance with the intention-to-treat principle, indicated that the intervention group reported significantly lower levels of work-related rumination at two weeks post-vacation compared with controls [\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&amp;lt;\u20090.001,\n                      <jats:italic>d<\/jats:italic>\n                      \u2009=\u2009\u22120.67 (\u22121.0; \u22120.4)]. At this time, rumination levels were still reduced by 22.2% in the intervention group, compared with 6.9% in controls relative to baseline. Among app users, reductions persisted for up to four weeks (26.1%). Sensitivity analyses confirmed these results. These findings provide first evidence that a mobile health technology can extend vacation-related recovery benefits and reduce work-related rumination in workers.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This is the first RCT to show that the rapid fade-out of vacation benefits is not inevitable. Holidaily appears to improve workers\u2019 ability to reduce levels of work-related rumination. These results highlight the potential of scalable digital interventions to foster sustainable mental health in working populations and support preventive public health efforts.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Clinical Trial Registration<\/jats:title>\n                    <jats:p>\n                      <jats:ext-link>https:\/\/drks.de\/search\/de\/trial\/DRKS00013650<\/jats:ext-link>\n                      , German WHO DRKS00013650.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fdgth.2026.1698339","type":"journal-article","created":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T05:52:30Z","timestamp":1776837150000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Effectiveness of the mobile application Holidaily in reducing work-related rumination when returning to work after vacation: a randomized controlled trial"],"prefix":"10.3389","volume":"8","author":[{"given":"Alexandra","family":"Thomsen","sequence":"first","affiliation":[{"name":"Department of Health Psychology and Applied Biological Psychology, Institute of Sustainability Psychology, Leuphana University","place":["L\u00fcneburg, Germany"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christine","family":"Syrek","sequence":"additional","affiliation":[{"name":"Department of Management Sciences, University of Applied Sciences Bonn-Rhein Sieg","place":["Rheinbach, Germany"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hanna A.","family":"Br\u00fcckner","sequence":"additional","affiliation":[{"name":"Department of Health Psychology and Applied Biological Psychology, Institute of Sustainability Psychology, Leuphana University","place":["L\u00fcneburg, Germany"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jessica","family":"de Bloom","sequence":"additional","affiliation":[{"name":"Department of Human Resource Management and Organisational Behavior, University of Groningen","place":["Groningen, Netherlands"]},{"name":"Department of Psychology, Tampere University","place":["Tampere, Finland"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Monique","family":"Janneck","sequence":"additional","affiliation":[{"name":"Institute for Interactive Systems, Technische Hochschule Luebeck","place":["Luebeck, Germany"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Markus","family":"Domin","sequence":"additional","affiliation":[{"name":"Department of Health Psychology and Applied Biological Psychology, Institute of Sustainability Psychology, Leuphana University","place":["L\u00fcneburg, Germany"]},{"name":"Institute for Interactive Systems, Technische Hochschule Luebeck","place":["Luebeck, Germany"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jo Annika","family":"Reins","sequence":"additional","affiliation":[{"name":"Department of Health Psychology and Applied Biological Psychology, Institute of Sustainability Psychology, Leuphana University","place":["L\u00fcneburg, Germany"]},{"name":"Institute for Interactive Systems, Technische Hochschule Luebeck","place":["Luebeck, Germany"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dirk","family":"Lehr","sequence":"additional","affiliation":[{"name":"Department of Health Psychology and Applied Biological Psychology, Institute of Sustainability Psychology, Leuphana University","place":["L\u00fcneburg, Germany"]}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2026,4,22]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"262","DOI":"10.1002\/job.2217","article-title":"Recovery from work-related effort: a meta-analysis","volume":"39","author":"Bennett","year":"2018","journal-title":"J Organ 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