Mental Health and Work


Fatigue quick guide

To work safely, workers should be physically and mentally alert. This means that fatigue is a potential risk. Persons conducting a business or undertaking (PCBUs) and workers have a responsibility to manage fatigue at work.

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Worker Fatigue, casues and effects

What Causes Worker Fatigue?

Several factors including too little, poor quality or interrupted sleep over a period of time can cause fatigue. Fatigue is the body's signal that a rest period is needed.  Long work hours and extended and irregular shifts may be stressful physically, mentally and emotionally. The body operates on a circadian rhythm sleep/wake cycle. It is naturally programmed for sleeping during night hours. Demanding work schedules may disrupt the body's natural cycle, leading to increased fatigue, stress and lack of concentration.

What are the Effects of Demanding Work Schedules?

Long work hours and extended and irregular shifts may lead to fatigue and to physical and mental stress. Working extended shifts may also involve prolonged exposure to potential health hazards such as noise, chemicals, and others. These exposures could exceed established permissible exposure limits (PELs) or violate other health standards. Employers must implement measures to monitor and limit worker exposures to health and physical hazards in the workplace as required by the Occupational Safety and Health Act.

What Worker Population Does This Affect?

Irregular and extended shifts are common among healthcare providers, transportation workers, first responders, firefighters, police officers, military personnel, construction workers, oil field workers, service and hospitality workers and many others.

 

What Are the Effects of Worker Fatigue?
  • Worker fatigue increases the risk for illnesses and injuries. Accident and injury rates1 are 18% greater during evening shifts and 30% greater during night shifts when compared to day shifts. Reseach indicates that working 12 hours per day is associated with a 37% increased risk of injury2. In a 2005 study reporting on a survey of 2737 medical residents, every extended shift scheduled in a month increased by 16.2 % monthly risk of a motor vehicle crash during their commute home from work.
  • Decreased alertness from worker fatigue has been a contributing factor in:
    • Industrial disasters such as the 2005 Texas City BP oil refinery explosion, the 2009 Colgan Air Crash, the explosion of the space shuttle Challenger and the nuclear accidents at Chernobyl and Three Mile Island.
    • Increased sleep problems and risk for injury1 among full-time employees in relation to the number of hours worked per week.
    • Errors in patient care, increased needlesticks and exposure to blood and other body fluids and increased occupational injuries among healthcare workers.
    • Direct or indirect links to increased costs3 from lost productivity, increased injury and illness costs, increased time off the job due to illness and increased workers' compensation costs.
    • An estimated annual cost of $136.4 billion from fatigue-related, health-related lost productive work time to employers4.
How Can Fatigue Affect Worker Safety and Health?

 

Fatigue can cause weariness, sleepiness, irritability, reduced alertness, impaired decision making, and lack of motivation, concentration and memory. Studies have shown that fatigue is linked to health problems such as:

  • Heart disease
  • Stomach and digestive problems
  • Musculoskeletal disorders
  • Reproductive problems
  • Depression
  • Some cancers (breast and prostate)
  • Sleep disorders
  • Poor eating habits/obesity
  • Worsening of existing chronic diseases such as diabetes and epilepsy
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Fatigue and worker safety

  • Risk factors for occupational fatigue include long work hours, a heavy workload, lack of sleep, environmental factors and medical conditions.
  • Experts say employers can help combat fatigue by offering breaks, scheduling work when employees are most alert and promoting the importance of sleep.
  • The National Safety Council has launched an initiative about fatigue, gathering data with the aim of identifying solutions and releasing a policy toolkit and other resources.
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What is fatigue?

Fatigue is the state of feeling very tired, weary or sleepy resulting from insufficient sleep, prolonged mental or physical work, or extended periods of stress or anxiety. Boring or repetitive tasks can intensify feelings of fatigue.

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Signs of Burnout ... Do You Have Them?

 

 Recognizing the signs of burnout before it's too late

 Burnout is one of those road hazards in life that high-achievers really should be keeping a close eye out for, but sadly—often because of their "I can do everything" personalities—they rarely see it coming. Because high-achievers are often so passionate about what they do,

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Burnout Prevention and Treatment

Techniques for Dealing with Overwhelming Stress

 If constant stress has you feeling helpless, disillusioned, and completely exhausted, you may be on the road to burnout. When you’re burned out, problems seem insurmountable, everything looks bleak, and it’s difficult to muster up the energy to care—let alone do something to help yourself.

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