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Team Burnout: Spotting Warning Signs and Fixing the Work Itself

A manager's guide to burnout: the WHO ICD-11 definition, signs you can see, the six areas of worklife, and team-level fixes drawn from NIOSH and the Surgeon General.

Leader Chaos · Last reviewed October 23, 2026 · 6 min read

When a team has been running hard for months, burnout rarely announces itself. It shows up as a reliable colleague who has gone quiet, a dry joke about the mission that is no longer quite a joke, or quality slipping on work people used to be proud of. The usual response is to hand out tips on self-care. That helps less than leaders hope, because burnout is mostly about the work, not the worker.

This guide is for managers. It covers how the World Health Organization defines burnout, the warning signs a leader can actually see, where burnout tends to come from, and what you can change at the team level. It is general information, not medical advice, and it is not a substitute for professional care.

What burnout is, and what it isn't

The World Health Organization includes burn-out in the 11th Revision of the International Classification of Diseases (ICD-11) as an occupational phenomenon. WHO is explicit that it is not classified as a medical condition. The ICD-11 definition describes burn-out as a syndrome "resulting from chronic workplace stress that has not been successfully managed," characterized by three dimensions:

  • feelings of energy depletion or exhaustion
  • increased mental distance from one's job, or feelings of negativism or cynicism related to one's job
  • reduced professional efficacy

WHO adds that the term refers specifically to the occupational context and should not be applied to experiences in other areas of life.

Two practical points follow. First, the definition locates the cause in unmanaged workplace stress, which puts part of the responsibility on how work is organized. Second, a manager's role is to notice and respond, not to diagnose. Exhaustion and withdrawal can also be signs of health conditions that need a professional. If someone's distress seems serious, encourage them to seek care; if anyone is in crisis, they can call or text 988, and if someone is in immediate danger, call 911.

Warning signs a leader can see

The three dimensions translate into patterns you may notice at work. None of them proves burnout, but each is worth a private, caring conversation:

  • Exhaustion. More errors on routine tasks, people who seem drained by Monday afternoon, unused vacation alongside rising sick days.
  • Mental distance. Cynical comments about the team's goals, people who stop contributing ideas in meetings, a "why bother" tone when changes are proposed.
  • Reduced efficacy. Capable people doubting their own work, needing more reassurance, or saying they no longer feel they accomplish anything.

Look for team-level patterns too. Is the same small group always covering emergencies? Have late-night messages become normal? When a team shows these signs together, look first at the conditions of the work.

Where burnout comes from

Christina Maslach and Michael Leiter, in a 2016 review in World Psychiatry, describe the Areas of Worklife model, which identifies six areas where mismatches between a person and their job take place: workload, control, reward, community, fairness and values. As they put it, the greater the mismatch between the person and the job, the greater the likelihood of burnout, and the greater the match, the greater the likelihood of engagement.

They also note a gap between the evidence and common practice: "the primary emphasis has been on individual strategies, rather than social or organizational ones, despite the research evidence for the primary role of situational factors."

NIOSH, the U.S. National Institute for Occupational Safety and Health, makes a similar point in its booklet Stress...at Work. It defines job stress as "the harmful physical and emotional responses that occur when the requirements of the job do not match the capabilities, resources, or needs of the worker." Among the job conditions it lists as potential sources of stress are heavy workload, infrequent rest breaks, long work hours, lack of participation in decision making, conflicting or uncertain job expectations, and job insecurity.

Fixing the work: a manager's playbook

The U.S. Surgeon General's 2022 Framework for Workplace Mental Health & Well-Being organizes its recommendations into five essentials, centered on worker voice and equity: Protection from Harm, Connection and Community, Work-Life Harmony, Mattering at Work, and Opportunity for Growth. Several of its components are within a team leader's reach:

  1. Look hard at workload and resources. The framework mentions examining workload and the adequacy of resources to meet job demands, such as staffing and coverage, and reducing long working hours. Use the six areas above as a checklist: is this mainly a workload problem, a control problem, a fairness problem?
  2. Protect rest. "Enable adequate rest" is one of the framework's components. Rotate on-call duties, build recovery time after crunch periods, and make sure leave actually gets taken.
  3. Respect off-hours. The framework cites a 2020 study of about 2,000 faculty and staff at 40 Australian public universities in which staff whose supervisors expected them to respond to messages after work reported higher psychological distress and emotional exhaustion. Say clearly what can wait until morning, and model it.
  4. Give people more say. The framework recommends more autonomy over how work is done and engaging workers in workplace decisions. NIOSH similarly recommends giving workers opportunities to participate in decisions and actions affecting their jobs.
  5. Clarify roles. NIOSH advises clearly defining workers' roles and responsibilities. Uncertain or conflicting expectations are draining on their own.
  6. Recognize the work. "Build a culture of gratitude and recognition" is a framework component. Specific thanks for specific effort costs little.

NIOSH describes the process of stress prevention as three steps: problem identification, intervention and evaluation. In practice, that means asking the team what is wearing them down, changing one or two things that matter, and checking a few weeks later whether it helped.

For example, imagine a five-person operations team that has absorbed two departures without backfill. A wellness webinar will not fix that. Pausing a low-value report, getting temporary help approved and rotating weekend coverage might.

Supporting individuals without making it their problem

Fixing the work does not mean ignoring individuals. If someone seems to be struggling, talk privately, describe what you have noticed at work, and ask how they are doing. Point them to support. The Surgeon General's framework notes that workplace Employee Assistance Programs (EAPs) "remain significantly underutilized," so mention yours by name and explain how to reach it. Our guide "Supporting a Struggling Employee: What to Do and What Not To" covers that conversation in more detail.

What not to do

  • Don't treat resilience training as the whole answer. Maslach and Leiter's point about individual strategies applies here.
  • Don't reward heroics. Praising the person who worked all weekend teaches everyone else that overwork is the path to recognition.
  • Don't wait for a resignation. Ask early and often about load, especially after a crisis ends.
  • Don't diagnose. You can name what you see at work; leave conclusions about health to professionals.

Key takeaways

  • WHO's ICD-11 describes burn-out as an occupational phenomenon resulting from chronic workplace stress that has not been successfully managed, not as a medical condition.
  • Its three dimensions are exhaustion, mental distance or cynicism, and reduced professional efficacy.
  • Maslach and Leiter's six areas (workload, control, reward, community, fairness, values) help locate the mismatch.
  • Team-level changes to workload, rest, autonomy, clarity and recognition address causes that individual tips cannot.
  • Notice and support individuals, point them to the EAP, and in a crisis, call or text 988 (or 911 for immediate danger).

Sources

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