How many hours a week is unhealthy to work?

Asked by: Josh Hettinger II  |  Last update: April 16, 2026
Score: 5/5 (17 votes)

Working more than 55 hours a week is considered a serious health hazard by the World Health Organization (WHO) and International Labour Organization (ILO), significantly raising risks for stroke, heart disease, and early death, with studies showing 745,000 deaths linked to long hours in 2016. While 40 hours is standard, exceeding 50-55 hours weekly leads to burnout, stress, mental health issues, and accidents, impacting sleep and overall well-being.

How many hours of work a week is considered unhealthy?

A study conducted by the World Health Organization concluded that working 55 or more hours per week is associated with an estimated 35% higher risk of a stroke and a 17% higher risk of dying from ischemic heart disease compared to working 35-40 hours per week.

How many hours a week is overwork?

Research suggests working more than 55 hours a week can have negative effects on your health — and it's no wonder. When we sacrifice our health and personal responsibilities for overworking, we give up more than just our time and energy.

What is considered excessive working hours?

The Fair Labor Standards Act (FLSA) states that any work over 40 hours in a 168 hour period is counted as overtime, since the average American work week is 40 hours - that's eight hours per day for five days a week.

Is it healthy to work 50 hours a week?

Short answer: Sometimes -- but only when the extra hours produce clear, measurable benefits that align with your financial goals, career trajectory, health tolerances, or a time-limited project. For most people and most extended periods, 50-hour weeks are a net loss in productivity, wellbeing, or both.

By the Numbers: The health impact of long work hours

44 related questions found

What is the 9 9 6 rule?

The 9-9-6 rule is a demanding work schedule (9 a.m. to 9 p.m., six days a week, totaling 72 hours) originating in Chinese tech companies, promoting intense overwork for rapid growth but criticized as exploitative and leading to burnout, sparking debate globally about productivity versus employee well-being, with figures like Infosys founder Narayana Murthy advocating for it while many workers push back, noting it violates labor laws and harms health.
 

What are signs of overworking your body?

What are overtraining syndrome symptoms?

  • Muscle pain and stiffness.
  • Unexpected weight loss or weight gain.
  • Anxiety.
  • Poor sleep, or waking up feeling tired.
  • Getting sick more often with minor issues like colds.

What is the 3 3 3 rule for working?

The 3-3-3 rule for working, popularized by Oliver Burkeman, is a time management method that breaks your workday into three main blocks: three hours for deep focus on your most important project, followed by three hours for shorter, urgent tasks (like emails, calls), and ending with three hours on routine maintenance activities (admin, planning). This technique provides structure, prevents burnout by saving simple tasks for later, and ensures progress on major goals while staying on top of daily necessities, creating a balanced and productive day. 

What is the 42% rule for burnout?

The "42% rule for burnout" suggests dedicating roughly 10 hours (42%) of your 24-hour day to rest and recovery—sleep, stress-reducing activities, hobbies, movement, and connection—to combat chronic stress and prevent burnout, a concept popularized by health scientist Amelia Nagoski. It's a science-backed guideline emphasizing that true productivity requires balancing work with non-negotiable downtime for recharging, rather than just pushing through constant busyness. 

What is the 8 and 80 rule?

The "8/80 rule" refers to an overtime exception in the Fair Labor Standards Act (FLSA) for certain healthcare facilities, allowing them to pay overtime (1.5x regular rate) for hours over 8 in a workday or 80 in a 14-day period, rather than the standard 40-hour workweek rule, provided there's an agreement with employees. It's an alternative to the typical overtime calculation, offering scheduling flexibility for hospitals and residential care, but it requires strict adherence to the 14-day period and prohibits using both systems for one employee. 

What are the healthiest hours to work?

Ideal shift schedule: Day shifts with slightly shorter hours (8 AM–3 PM or 9 AM–4 PM) allow for better recovery while maintaining high job satisfaction and employee engagement.

What is the 3 month rule in a job?

The "3-month rule" in a job refers to the common probationary period where both employer and employee assess fit, acting as a trial to see if the role and person align before full commitment, often involving learning goals (like a 30-60-90 day plan) and performance reviews, allowing either party to end employment more easily, notes Talent Management Institute (TMI), Frontline Source Group, Indeed.com, and Talent Management Institute (TMI). It's a crucial time for onboarding, understanding expectations, and demonstrating capability, setting the foundation for future growth, says Talent Management Institute (TMI), inTulsa Talent, and Talent Management Institute (TMI). 

What is an unhealthy work-life balance?

Signs of an unhealthy work-life balance

Struggling with personal responsibilities: Everyday tasks like laundry, dishes, and scheduling appointments fall through the cracks. Or, you spend a lot of money outsourcing them because you don't have the time or energy to manage them yourself.

What is the 9 80 rule?

The 9/80 rule, or 9/80 schedule, is a compressed workweek where employees work 80 hours over nine days in a two-week pay period, instead of ten days, earning a three-day weekend every other week. Employees typically work eight 9-hour days and one 8-hour day, with the extra hours in the first week making up for the day off in the second week, effectively creating a shorter, more flexible schedule that boosts work-life balance and productivity.
 

How does working long hours change the brain?

Long working hours may alter the structure of the brain, particularly the areas associated with emotional regulation and executive function, such as working memory and problem solving, suggest the findings of preliminary research, published online in Occupational & Environmental Medicine.

How many hours a week is a workaholic?

You can work 60+ hours per week without being a workaholic — if you can stop worrying about work after you clock out. On the other hand, someone might work a little over 40 hours per week and be a workaholic if they keep obsessing over work at home. You can also recognize workaholism by the effects it produces.

What are the 3 R's of burnout?

The 3 R's of burnout are generally Recognize, Reverse, and Resilience, forming a strategy to identify warning signs, take action to undo damage (like stress management), and build long-term adaptability through self-care (exercise, sleep, nutrition) to prevent future episodes. Other variations include Relax, Reflect, Regroup or Recognize, Respond, Replenish, all focusing on awareness, action, and recovery.
 

What are the five stages of burnout?

The 5 stages of burnout progress from initial enthusiasm to a final state of deep exhaustion and apathy, typically including the Honeymoon Phase (excitement), Onset of Stress (enthusiasm wanes, stress appears), Chronic Stress (persistent alertness, cynicism), Burnout (exhaustion, detachment, physical symptoms), and Habitual Burnout (deep, embedded mental/physical collapse, hopelessness). Recognizing these stages helps in early intervention to prevent severe negative impacts on mental, physical, and emotional health.
 

Can I get fired for burnout?

Unfortunately, while you can't be fired for burnout, you can be fired for poor job performance.

What is the healthiest shift pattern to work?

The healthiest shift work schedule prioritizes consistency, forward rotation (day > afternoon > night), fewer night shifts, and adequate rest, with forward-rotating patterns like the 2-2-3 schedule (Panama) often cited as beneficial for minimizing circadian disruption, while stable day shifts are ideal if possible, and avoiding very early starts (before 6 AM) or last-minute changes is crucial for health. 

What is the 25 minute work rule?

The Pomodoro Technique is a time management method in which you do focused work during 25-minute intervals — known as pomodoros — and take a five-minute break. We love this method because it: Improves focus. Minimizes distractions.

What were Einstein's work habits?

Einstein fiercely guarded his time. He often walked alone, declined social engagements, and created long stretches of undisturbed work. These habits supported what Cal Newport calls “deep work” — the ability to focus without distraction on cognitively demanding tasks.

What is the biggest red flag at work?

The biggest red flags at work often signal a toxic culture and poor leadership, with high turnover, communication breakdowns, lack of trust, blame culture, and unrealistic expectations being major indicators that employees are undervalued, leading to burnout and instability. These issues create an environment where people feel unappreciated, micromanaged, or unsupported, making it difficult to thrive and often prompting good employees to leave.
 

What are 7 warning signs of stress?

Seven common signs of stress include physical issues like headaches, muscle tension, and fatigue; emotional changes such as irritability and anxiety; and behavioral shifts like sleep problems, changes in appetite, social withdrawal, or increased substance use, all signaling your body's response to pressure. Recognizing these signs, which can manifest as digestive upset, rapid heart rate, or difficulty concentrating, helps in taking steps to manage stress effectively.
 

What illness is caused by overworking?

Overworking increases the risk of cardiovascular diseases and stroke, as well as affecting mental health. Physical and mental strain of the overworked people can start from acute physiological responses such as fatigue, stress, impaired sleep, and unhealthy lifestyle changes in response to the stress.