How many hours of work a week is considered unhealthy?

Asked by: Miss Berniece Kris  |  Last update: October 18, 2026
Score: 4.9/5 (18 votes)

Working 55 or more hours per week is considered a serious health hazard, according to the World Health Organization (WHO) and International Labor Organization. This threshold is linked to higher risks of stroke and heart disease, with studies estimating hundreds of thousands of deaths annually due to overwork.

How many hours is it unhealthy to work?

Working more than 55 hours per week is considered unhealthy by the WHO, significantly increasing risks of stroke and heart disease, with negative impacts like burnout, poor sleep, and strained relationships occurring even earlier, often cited around the 40-50 hour mark, depending on job stress, individual health, and control over hours. 

What is the 9 9 6 rule?

The 9-9-6 rule is a demanding work schedule, especially prevalent in China's tech sector, meaning employees work from 9 a.m. to 9 p.m., six days a week, totaling 72 hours weekly, and is associated with burnout, health risks, and being declared illegal by Chinese authorities, despite some recent advocacy for intense work ethics.
 

Is working 70 hours a week a lot?

Bottom line: working 70+ hours a week is a real and widespread phenomenon--common in certain professions and situations, often episodic but sometimes sustained--and it carries measurable health, productivity, and legal implications.

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.

By the Numbers: The health impact of long work hours

42 related questions found

Is it a red flag to leave a job after 3 months?

While many professionals recommend working for an organization for at least one year before pursuing another opportunity, there are certainly valid reasons for leaving a job sooner. Some other reasons professionals may choose to exit a company after three months include: Being offered another job with a higher salary.

Can I say no to work on Sunday?

Many organizations occasionally want some of their employees to work on weekends and holidays. If you do not wish to do so, you must make it clear to your employer, instead of constantly refusing them afterward.

How many hours do Chinese work?

How many hours can you work per week in China? In China the standard amount of hours in a week is 40 hours a week. The maximum amount of overtime hours is no more than 3 hours per workday. This equals out to be no more than 36 hours overtime a month.

What is the healthiest amount of hours to work in a week?

Researchers claim that there is a 60 percent increase in risk of cardiovascular diseases if you work more than 10 hours per day. That means that over 50 hours of work will cause heart issues. Working more than a 40-hour workweek consistently can lead to mental health issues.

What are the diseases 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.

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.

Can you get fired in the first 90 days?

In most U.S. states, employment is at-will, which means an employer can terminate an employee at any time, with or without cause, as long as it's not for discriminatory reasons. This could happen during the 90-day probationary period, or any time after the probation as well.

What are the signs an employee is about to quit?

The pre-quitting behaviors that made the cut are below:

  • Their work productivity has decreased more than usual.
  • They have acted less like a team player than usual.
  • They have been doing the minimum amount of work more frequently than usual.
  • They have been less interested in pleasing their manager than usual.

Can I quit my job due to stress and anxiety?

If your anxiety consistently interferes with your ability to perform tasks, compromises your well-being, and doesn't improve despite efforts to manage it, it might be time to consider leaving your current work situation.

How long should you stay at a job until you quit?

So, how long should you stay at a job before leaving? In an ideal world, you should stay at each job for a minimum of two years. However, if you quickly come to realize you made the wrong choice when accepting a position, don't feel obligated to stay at the company until your two-year anniversary.

What is the 42% rule for burnout?

The "42% rule for burnout" suggests your brain and body need about 42% of your time (roughly 10 hours daily) for rest, recovery, and restorative activities like sleep, gentle movement, hobbies, and social connection to prevent exhaustion and burnout, balancing the remaining 58% for work and demands. It's a science-backed guideline emphasizing that true productivity comes from balanced rest, not constant busy-ness, helping to manage stress and improve well-being by prioritizing activities like sleep, mindful eating, light exercise, and quality time with loved ones.