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Employee burnout has reached breaking point. According to Mental Health UK’s 2025 report, nine in 10 (91%) UK professionals experienced high pressure or stress at some point over the last year, leading to poor mental health, time off work, and low productivity. Our recruitment experts share insights on employee burnout, why proactively addressing it is so critical, and how to build meaningful and effective employee support into company ethos and practices.  

What is employee burnout?

The term ‘burnout’ refers to a state of physical, mental, and emotional exhaustion that occurs when you experience long-term stress, continued pressure, and repeated or high demands that exceed resources. The World Health Organization (WHO) classifies it as an ‘occupational phenomenon’, identified by exhaustion, negative feelings towards a job, and reduced professional efficacy. Experts agree that, as a cause of ill mental health and a risk factor for mental health conditions like depression or anxiety, burnout should be taken seriously.

Modern working can make burnout harder to spot

Managing a team working from home via hybrid or remote models means employers are less able to observe an employee’s temperament or physical appearance in person, requiring much sharper observation through digital communication platforms. You can still catch telltale signs of burnout if you know what to look for. For example, trackable online activity such as regularly sending emails or accessing systems or files outside work hours, or consistently failing to book annual leave allocation. Pay close attention to body language, tone of voice, and expression via video calls to gauge their well-being and temperament.

8 hidden signs of burnout

1. Frequently feeling tired  Employees who are chronically overtaxed and overstressed at work experience physical, emotional, and mental exhaustion. Prolonged stress can also affect sleep, leading to broken nights or insomnia, further compounding the issue.  2. Frequently ill or unwell Burnout can compromise a person’s immune system, making them much more susceptible to illness. Burnout symptoms can also include headaches and migraines, as well as gastroenteritis. 3. Persistent feelings of self-doubt Feelings of unworthiness and a sense of hopelessness are common symptoms of burnout as workloads or requirements feel out of control and beyond one's ability.  4. Feeling demotivated  Workers suffering from burnout may start to feel cynical, negative, or resentful towards their work and their employers. They may also lose enjoyment or any sense of achievement regarding their work.  5. Unrelenting feelings of dread  When you’ve got too much on, it’s incredibly difficult not to worry about it. Burnout often causes long-term anxiety and a sense of dread, which employees come to associate with their work. 6. Decreased productivity  Common symptoms of burnout include procrastination, difficulty concentrating, and increased lateness or absenteeism, which reduce overall productivity. 7. Becoming isolated and withdrawn Living with long-term burnout can often cause an employee to withdraw from social activities and collaboration. Tangentially, it can also cause them to rely on unhealthy habits for comfort — something they may conceal by disconnecting from group dynamics.  8. Irritable temperament It’s not uncommon for prolonged stress to manifest itself as a short temper and irritability. People living with burnout may start having outbursts or taking their frustrations out on others within the team.

What managers can do to reduce employee burnout

Consider offering physical and mental health support Providing physical and mental health support for employees via their perks and benefits package is a smart move. Not only can it help to mitigate the impact of burnout, but it also makes your company an incredibly attractive place to work. Our research shows that more than half (54%) of professionals now view access to mental-health resources as a deciding factor in whether to join or stay with an employer. Read: Hiring trends: what you should expect for the year ahead Consider hiring flexible help Budget cuts and redundancies cause inflated workloads as leaner teams try to do more with less. Effective employee support could mean adding contract or part-time talent to address the root cause of burnout without committing to permanent hires.  Read more: Why 'talent on demand' hiring models are the gateway to growth Offer upskilling and training New tools that combine elements of AI and automation can be incredibly useful in helping leaner teams achieve more or work more effectively. General training and upskilling can also be an effective remedy for burnout, as workers feel they’re being given the means to improve themselves and work towards new career goals.  Lead by example Your work ethic is reflected in your team, so ensure you take regular time off, keep comms to work hours, and maintain a realistic sense of how much can be done in a workday. An open-door policy is also incredibly helpful in supporting staff with poor mental health or burnout — let them know they can discuss their concerns with you.

Browse the latest Salary Guide for more information on popular perks and benefits that support employee well-being and work-life balance. Get in touch with our team today to learn more about ‘talent on demand’ hiring models.