Mental health challenges in the workplace rarely appear all at once. More often, they show up gradually through changes in behaviour, communication, energy, or performance.
Supervisors are not expected to diagnose employees, but they are often in the best position to notice when something has changed. Recognizing early warning signs allows organizations to respond sooner, reduce workplace risk, and connect employees with appropriate support before challenges escalate.
Why Should Managers Monitor for Mental Health Warning Signs?
Managers interact with employees regularly and often notice changes before anyone else. Because of this, supervisors play an important role in maintaining psychologically healthy workplaces.
Mental health concerns can affect attendance, productivity, communication, decision-making, morale, and workplace relationships. Especially when warning signs go unnoticed, employees may continue struggling in silence until the situation becomes more serious.
Early awareness also allows managers to approach concerns supportively rather than reactively. It can help create a workplace culture where employee wellbeing is taken seriously instead of only being addressed during a crisis.
What Behavioural Changes May Indicate Mental Health Decline?
Behavioural changes are often one of the earliest indicators that an employee may be struggling. The key is noticing changes from the employee’s usual patterns rather than isolated incidents.
Some examples may include:
- Increased withdrawal from coworkers and/or team activities
- Noticeable irritability, frustration, or emotional reactions
- Reduced engagement during meetings or conversations
- Avoidance of responsibilities or collaboration
- Changes in reliability, punctuality, or follow-through
- Signs of being overwhelmed during routine tasks.
These shifts do not automatically indicate a mental health condition, but they may signal that additional support is needed.
What Performance Changes Should Raise Concern?
Performance-related warning signs are often easier to identify because they directly affect daily work.
Managers may notice:
- Declining quality of work
- Difficulty concentrating or remembering details
- Increased mistakes or missed deadlines
- Reduced productivity or motivation
- Trouble making decisions
- Inconsistent performance levels
Employees experiencing mental health strain may appear distracted, mentally fatigued, or less organized than usual. In some cases, high-performing employees may begin overworking, skipping breaks, or struggling to maintain the same output they previously managed comfortably.
Performance concerns should be approached with curiosity and support rather than immediate assumptions about laziness or disengagement.
What Physical Indicators Should Managers Notice?
Mental health challenges can also present physically. While managers should avoid making assumptions about health conditions, noticeable physical changes may contribute to a broader pattern of concern.
Possible indicators may include:
- Frequent fatigue or low energy
- Noticeable changes in appearance or hygiene
- Increased absenteeism or lateness
- Repeated complaints of headaches, illness, or exhaustion
- Restlessness, agitation, or visible tension
- Significant changes in eating or sleeping patterns discussed openly by the employee
Stress and burnout often affect both mental and physical well-being, making these changes important to observe in context.
What Communication Changes Are Warning Signs?
Changes in communication style can reveal shifts in emotional well-being or stress levels.
Managers may notice:
- Short or unusually delayed responses
- Difficulty expressing thoughts clearly
- Increased sensitivity to feedback
- Avoidance of conversations or check-ins
- More negative or hopeless language
- Reduced participation in discussions
An employee who was previously communicative may begin avoiding emails, contributing less during meetings, or appearing emotionally detached from conversations.
Again, the focus should remain on noticing changes in patterns rather than analyzing personality traits.
What Is the Difference Between a Bad Week and a Pattern?
Everyone experiences stress, fatigue, or occasional off days. A single difficult week does not necessarily indicate a mental health concern. The difference is consistency and duration.
Managers should pay closer attention when changes:
- Persist over time
- Appear across multiple areas of work
- Represent a clear shift from the employee’s normal behaviour
- Begin affecting performance, relationships, or attendance consistently
Patterns matter more than isolated moments. Observing repeated changes over several weeks often provides more meaningful insight than reacting to one incident.
How Do You Document Observations Without Diagnosing?
Managers should document objective workplace observations rather than personal interpretations or medical assumptions.
Helpful documentation focuses on facts such as:
- Missed deadlines
- Attendance concerns
- Changes in participation
- Observable behavioural shifts
- Specific workplace incidents
For example, instead of writing “the employee seems depressed,” a manager might document: “Employee appeared withdrawn during meetings for the past three weeks and missed two project deadlines.”
Objective documentation helps organizations respond appropriately while maintaining professionalism and reducing stigma.
When Should Managers Act on Warning Signs?
Managers should act when concerns become persistent, impact workplace functioning, or suggest an employee may need support.
This does not mean waiting until performance becomes severe. Early supportive conversations are often more effective than delayed interventions.
A manager might:
- Check in privately with the employee
- Express concern about observable changes
- Ask open-ended questions about workload or support needs
- Encourage use of available workplace resources
- Consult HR when appropriate
The goal is not to pressure employees into disclosing personal information. Instead, it is to create opportunities for support and connection.
What Is the Manager’s Role vs. HR’s Role?
Managers and HR both contribute to employee well-being, but their responsibilities differ.
Managers are typically responsible for:
- Observing day-to-day workplace changes
- Addressing performance or behavioural concerns
- Creating psychologically safe communication
- Connecting employees with available supports
HR is generally responsible for:
- Policy guidance and accommodations
- Formal documentation processes
- Workplace investigations or escalations
- Coordinating organizational resources and support systems
Managers should not attempt to diagnose, counsel, or take on the role of a mental health professional. Their role is to recognize concerns early, respond appropriately, and involve the right internal supports when needed.
How to Get Support
Recognizing warning signs is only one part of supporting employee mental health. Equally important is ensuring employees know where support is available and how to access it.
Insight Psychological provides access to trained therapists across a wide range of specialties, supporting individuals with diverse mental health needs. With multiple locations across Alberta, virtual therapy options, lower-cost clinicians, and insurance-compatible services, support can be more accessible and flexible for employees. Appointments can be booked online or by phone, with services available in-person, by video, or by telephone.
For organizations looking to support mental health proactively at a workplace level, Insight Workplace offers workplace-focused psychological health services, including psychosocial risk assessments, organizational consulting, leadership support, and employee mental health resources designed to help create healthier and more psychologically safe work environments. To learn more, contact Insight Workplace by email or phone at (587)-749-9878 to explore available programs and support options for your organization.
Resources
American Psychiatric Association (n.d.). Workplace mental health – Knowing the warning signs. https://www.workplacementalhealth.org/mental-health-topics/knowing-the-warning-signs
American Psychiatric Association (n.d.). Warning signs of mental illness. https://www.psychiatry.org/patients-families/warning-signs-of-mental-illness
American Psychological Association (2024, June 12). 5 ways to improve employee mental health. https://www.apa.org. https://www.apa.org/topics/healthy-workplaces/improve-employee-mental-health
CAMH. (n.d.). When a family member chooses not to seek help. https://www.camh.ca/en/health-info/guides-and-publications/when-a-family-member-is-unwilling-to-seek-help
The Providence Center. (n.d.). The Dos and Don’ts of Supporting Someone with Mental Illness. https://www.providencecenter.org/news/the-dos-and-donts-of-supporting-someone-with-mental-illness
Workplace Safety & Prevention Services (2023, May 5). How can managers/supervisors identify when an employee may be struggling with their mental health? https://www.wsps.ca/resource-hub/employee-wellbeing/how-can-managers-supervisors-identify-when-an-employee-may-be-struggling-with-their-mental-health
