When the mind can no longer keep up: Why psychological stress in the workplace is becoming a leadership task
A Monday morning, another sick note in the team—and once again it is not a cold. Increasingly, it is exhaustion, feeling overwhelmed, or stress that puts employees out of action. What was long considered an individual problem has long since become a corporate reality: the number of days missed due to mental illness has been rising for years, and with it the responsibility of companies to take active countermeasures. The good news: those who pay attention early on can achieve a great deal—for the health of the workforce and for the future viability of the entire company.
„The body can regularly push its limits because it adapts. But it needs time for that."
Alarming figures
The current figures paint a clear picture: mental illnesses are now one of the strongest drivers of illness-related absenteeism in German companies. According to the AOK's 2025 Absenteeism Report, days lost due to mental illness have increased by 43 percent over the last ten years. 2. Particularly significant in this regard is the duration: with an average of 28.5 days of inability to work per case, mental illnesses cause significantly longer periods of absence than most other diagnostic groups 2.
Other health insurance funds also confirm the trend. According to an evaluation by DAK-Gesundheit, mental illnesses accounted for around 17.4 percent of the total sick leave in 2024, with 342 days of incapacity to work per 100 insured persons. 3. In 2024, the hkk health insurance fund recorded an absenteeism rate of 5.2 percent—another record high, to which mental illnesses contributed significantly. 4. This development long ago ceased to affect only individual industries or occupational groups, but cuts right across the entire working world.
What stress does to the body and performance
Mental strain is not a purely „mental“ phenomenon—it directly affects the entire organism. Persistent stress keeps the body in a constant state of high alert: concentration, sleep quality, and the ability to recover suffer, while the risk of secondary illnesses increases. This is precisely where the legal obligation for the mental health risk assessment (GBU Psyche) comes in, which is designed to help companies systematically identify and reduce stress factors in the workplace. In practice, however, there is still significant room for improvement: according to studies, only around 30 percent of companies currently assess mental strain as part of their risk assessment. 5. Companies that take action here not only gain legal certainty, but also obtain a realistic picture of where action is actually needed in daily operations.
From symptom to cause
Behind rising absenteeism are rarely single dramatic events, but mostly a combination of creeping stress factors: work intensification due to tighter staffing levels, a sense of constant uncertainty in the face of economic and structural changes, and permanent accessibility through mobile devices, which increasingly blurs the boundary between work and recovery. These factors often act for months or years before manifesting in a sick note—which is what makes them so insidious. Precisely for this reason, it is not enough to react only when the sickness rate is already rising. Effective corporate health management addresses the root causes: work organization, corporate culture, and the question of how employees can remain permanently capable of action instead of reaching their limits.
Your path to greater mental strength in the team: Our solutions for your company
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Your development impulse: Change is a process
Just as the body does not adapt to new physical demands overnight, new habits and a changed perception of stress also take time. Anyone who has been trapped in a certain pattern of tension and little recovery for years will not break this with a single measure—and that is completely normal. What is crucial is not the one big change, but the willingness to integrate small, repeatable routines into everyday life. This is precisely the strength of a well-designed corporate health management program: it creates recurring opportunities for employees to try out and solidify new coping strategies.
Practical impulse: The 5-4-3-2-1 grounding exercise
A simple mindfulness exercise to bring the nervous system back to the present moment in stressful moments. Pause briefly and consciously perceive:
- 5 things you see
- 4 things you hear
- 3 things you can feel physically
- 2 things you can smell
- 1 thing you can taste
This exercise stops the mental loop and can be performed discreetly at your desk, before an important meeting, or during an acute stress situation in your daily work.
Conclusion
Psychological stress in the workplace is no longer a fringe issue, but one of the central challenges for companies in 2026. The figures clearly show that anyone who fails to act now risks rising absenteeism, falling productivity, and the loss of valuable employees. The good news is that with the right, well-measured measures, it is possible to counteract this – step by step, not overnight.
Would you like to specifically strengthen mental health in your company? Contact us - together we will develop a corporate health management concept that fits your company and your budget.
1 Pharmazeutische Zeitung. (2026). Ingo Froböse: „Wir brauchen eine Prävolution“ [We need a prevolution]. Interview. Retrieved from https://www.pharmazeutische-zeitung.de/wir-brauchen-eine-praevolution-165864/
2 AOK-Bundesverband & Wissenschaftliches Institut der AOK (WIdO). (2025). Fehlzeiten-Report 2025. Retrieved from https://www.aok.de/fk/betriebliche-gesundheit/grundlagen/fehlzeiten/ueberblick-fehlzeiten-report/
3 DAK-Gesundheit. (2025). Psychreport 2025. Retrieved from https://www.dak.de/dak/unternehmen/reporte-forschung/psychreport-2025_91766
4 hkk Krankenkasse. (2025, January 17). Absenteeism analysis: Mental illnesses. Retrieved from https://www.hkk.de/presse/pressemitteilungen/2025-01-17-hkk-fehlzeitenanalyse-psychische-erkrankungen
5 Risk assessment for mental stress: Appropriate analytical tools for social and healthcare services. NCBI/PMC. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8620315/