Understanding the Signs of Mental Health Challenges at Work

Mental health challenges in the workplace are more common than many organisations realise. While some employees may openly discuss how they are feeling, others may struggle in silence, often showing subtle behavioural changes long before they ask for support.

For managers and HR teams, recognising these signs early can make a meaningful difference. A supportive conversation, a manageable workload adjustment, or simply creating space for someone to speak openly can help prevent problems from escalating further.

Mental Health Awareness Week is an important reminder that employee wellbeing should remain part of everyday workplace culture, not just an annual conversation.

Frequent Absence

One of the most noticeable signs that an employee may be struggling is a change in attendance patterns. This could include:

• increased sickness absence
• repeated short-term absences
• more last-minute leave requests
• regular Monday or Friday absences

While absence alone does not automatically indicate mental health concerns, sudden changes in attendance can sometimes point to stress, burnout, anxiety, or emotional exhaustion.

Managers should focus on identifying patterns compassionately rather than making assumptions.

Leaving Early or Arriving Late

Employees experiencing mental health challenges may begin arriving late, leaving early, or appearing disengaged during working hours. In some cases, this can be linked to:

• sleep disruption
• stress-related fatigue
• difficulty concentrating
• emotional overwhelm

A previously reliable employee becoming inconsistent with working hours may indicate that additional support or flexibility is needed.

Decrease in Performance

Mental health can significantly impact concentration, productivity, and motivation. Employees who are struggling may:

• miss deadlines
• make unusual mistakes
• become less organised
• appear distracted or withdrawn

For HR leaders and managers, it is important to approach performance changes with empathy rather than immediately treating them as disciplinary issues.

Stress and Fatigue

Persistent stress and exhaustion are among the most common signs of workplace burnout. Employees may appear:

• mentally drained
• overwhelmed
• emotionally reactive
• consistently tired

In fast-paced workplaces, stress can sometimes become normalised, which makes it even more important for organisations to encourage healthy workloads, breaks, and work-life balance.

Withdrawal From Colleagues

Employees who are struggling may begin isolating themselves from coworkers or avoiding social interaction. This might include:

• reduced participation in meetings
• avoiding team conversations
• turning cameras off regularly during virtual meetings
• less collaboration than usual

A noticeable change in communication style or engagement can sometimes indicate that someone is finding work emotionally difficult.

Increased Irritability

Stress and emotional fatigue can affect how people communicate and respond to everyday situations. Employees may become:

• more easily frustrated
• unusually quiet
• defensive
• emotionally reactive

Again, these behaviours should be approached carefully and supportively rather than critically.

Avoidance of Responsibility

Someone struggling with their mental wellbeing may begin avoiding tasks they would normally handle confidently. This can look like:

• procrastination
• delayed responses
• avoiding decision-making
• reluctance to take on new work

Often, this stems from feeling mentally overwhelmed rather than disengaged.

Overworking

Interestingly, overworking can also be a warning sign. Employees experiencing stress or anxiety may:

• work excessive hours
• avoid taking breaks
• struggle to switch off
• continue working while unwell

While high productivity is often praised, consistently overworking can increase the risk of burnout and long-term mental exhaustion.

Creating a Supportive Workplace

Recognising the signs is only part of the solution. Organisations should also focus on creating environments where employees feel safe discussing wellbeing concerns without fear of judgement.

This can include:

• regular check-ins
• flexible working options
• manageable workloads
• wellbeing initiatives
• mental health training for managers
• clear communication channels

Technology can also support healthier workplaces by helping HR teams identify absence patterns, manage workloads more effectively, and improve visibility across teams without relying on manual processes.

Supporting Employees Beyond Awareness Campaigns

Mental Health Awareness Week helps shine a spotlight on workplace wellbeing, but meaningful support should continue throughout the year.

By encouraging open conversations and recognising early warning signs, organisations can help employees feel more supported, valued, and able to thrive at work.