Why Work Can Make You Sick — and What to Do About It
On average, we spend a third of our adult lives working. Whether in the office, at home, or in hybrid settings, work occupies not only our hours but also our thoughts, energy, and often our rest. It is no surprise, then, that the professional environment is among the leading risk factors for mental illness worldwide.
The World Health Organization (WHO) has recognized burnout syndrome — occupational exhaustion — as a work-related phenomenon since 2019, when it was included in the International Classification of Diseases (ICD-11). This formal recognition was a significant milestone: it signaled that suffering at work is not an individual weakness but a public health issue with identifiable structural causes.
This article compiles general information on how work affects mental health, which signs deserve attention, and what individuals and organizations can do to create a healthier environment. Attention: this content is informative. Persistent symptoms should always be evaluated by a qualified health professional.
What is Mental Health in the Workplace Context?
Mental health is not merely the absence of disease. WHO defines mental health as a state of well-being in which an individual can cope with the normal stresses of life, work productively, and contribute to their community. In the professional environment, this translates into something tangible: being able to perform daily tasks without work consuming all your emotional energy or harming your life outside of it.
The problem is that the line between dedication and exhaustion can be thin — and often invisible. Organizational cultures that value constant availability, productivity above all, and the suppression of vulnerabilities contribute to workers getting sick without noticing, or noticing too late.
Main Psychosocial Risks at Work
Occupational health research identifies a range of factors that increase the risk of mental illness at work. Among the most documented are:
- Excessive workload — demands that chronically exceed the worker’s physical and cognitive capacity
- Lack of control — little autonomy over how, when, and in what way tasks are performed
- Insufficient recognition — lack of positive feedback, inadequate remuneration, or feeling invisible
- Toxic interpersonal relationships — frequent conflicts, bullying, isolation, or lack of social support
- Job insecurity — constant threat of dismissal or contractual instability
- Lack of equity — perception of injustice in decisions, task distribution, or growth opportunities
- Conflict between personal and organizational values — being forced to act contrary to one’s beliefs and principles
Burnout, Anxiety, and Depression: Understanding the Differences
When it comes to mental health at work, three terms frequently appear: burnout, anxiety, and depression. Although they may overlap, they are distinct conditions.
Burnout is specifically related to the occupational context. It manifests in three dimensions: intense emotional exhaustion, mental distancing from work (cynicism or depersonalization), and a sense of inefficacy — the impression that no matter how much is done, the results are never enough. It is important to note that burnout, by itself, is not considered a mental disorder but a state that can precipitate other health problems.
Anxiety related to work involves excessive worry about performance, fear of making mistakes, difficulty disconnecting even outside work hours, and physical symptoms like muscle tension, insomnia, and palpitations. Depression is a mental health disorder that can be triggered or worsened by adverse working conditions but has a multifactorial origin — genetics, life history, social context — and requires professional evaluation and follow-up.
Recognizing these concepts is the first step to seeking the right help.
Warning Signs That Deserve Attention
Mental illness rarely arrives suddenly. It installs gradually, often disguised as temporary fatigue or a “bad phase.” Some signs that may indicate something is beyond common stress include:
- Persistent difficulty sleeping or sleeping excessively
- Unusual irritability, even outside the work environment
- Constant feeling that “nothing will work out”
- Social isolation — avoiding colleagues, friends, and family
- Significant drop in concentration and performance
- Recurrent physical symptoms without identified organic cause (headaches, gastrointestinal problems)
- Loss of pleasure in activities that were previously enjoyable
- Recurring thoughts about not wanting to go to work, evolving to not wanting to get out of bed
These signs are not weakness or fussiness. They are the body’s responses to overload situations. In the face of any of them persistently, the recommendation is to seek guidance from a doctor or mental health professional.
What You Can Do: Individual Strategies
Although the structural conditions of work do not depend solely on the worker, there are individual practices supported by research that can help protect well-being. It is not about “solving everything alone,” but creating layers of protection while other factors are addressed.
- Establish clear boundaries between work and personal life. Turning off work notifications outside of hours, having an end-of-day ritual, and communicating your availability transparently are concrete steps.
- Prioritize sleep. Sleep is essential for emotional regulation. Adults generally need seven to nine hours per night — a recommendation widely supported by scientific literature. Interestingly, what happens in the brain during sleep goes far beyond rest: memory consolidation and emotional regulation processes occur during this period. If you want to understand this mechanism better, check out What Happens in the Brain When We Dream.
- Move your body regularly. Moderate physical activity has documented effects on reducing symptoms of anxiety and depression. It doesn’t have to be a gym: regular walks already make a difference.
- Cultivate social connections. Support from colleagues, friends, and family acts as a buffer against stress. Investing in these relationships is not a waste of time — it is health protection.
- Learn to identify and communicate your limits. Saying “no” assertively, asking for help when needed, and communicating overload to the manager are skills that can be developed.
- Seek recovery spaces. Breaks during the day, effectively rested vacations (without emails and reports), and hobbies disconnected from work are forms of recovery that neuroscience has shown to be essential.
The Role of Organizations: More Than Well-being Benefits
In recent years, it has become common for companies to offer well-being programs — meditation apps, talks about balance, and occasionally access to psychologists. These resources have value, but occupational health experts warn that they do not replace structural changes.
Offering yoga classes is of little use if the organizational culture normalizes twelve-hour shifts and punishes those who ask for vacations. Real well-being at work involves concrete management decisions:
- Realistic task distribution — considering human capacity, not just targets
- Leadership modeling healthy behaviors — managers who respect schedules and talk openly about mental health
- Safe communication channels — spaces where workers can report overload and conflicts without fear of retaliation
- Clear anti-harassment policies — with accessible procedures and real consequences
- Genuine flexibility — not just in speech, but in everyday practice
Organizations investing in these areas tend to have lower turnover, higher engagement, and fewer sick leaves — which, besides the human aspect, directly impacts results.
When and How to Seek Professional Help
Seeking help still carries stigma in many environments, but this has been gradually changing. Recognizing the need for support is a sign of self-awareness, not incapacity.
The first step may be a conversation with a trusted doctor, who can make an initial assessment and, if necessary, refer to a psychologist or psychiatrist. In Brazil, the Unified Health System (SUS) offers mental health care at Psychosocial Care Centers (CAPS) and Basic Health Units (UBS). Health plans, when available, also usually cover consultations with psychologists.
For crisis situations, the CVV (Centro de Valorização da Vida) offers free and confidential support by phone at 188, available 24 hours a day, every day of the week.
Conclusion: Mental Health at Work is a Shared Responsibility
Work can be a source of fulfillment, purpose, and connection — but it can also cause illness when conditions are not adequate. Understanding this duality is essential for acting consciously, both individually and collectively.
Protecting mental health at work is not a luxury or a passing trend: it is a human necessity grounded in decades of public health and organizational psychology research. This requires action on multiple fronts — individual habits, cultural changes in organizations, and public policies recognizing work as a health determinant.
If you identified with any of the signs mentioned in this article, do not wait for the problem to resolve itself. Talking to someone you trust or seeking professional guidance may be the most important step you take today — and it is always worth the effort.
This article is informative and educational. It does not replace evaluation, diagnosis, or treatment by a qualified health professional.
