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    NOSHA News March 2016

    March 22, 2016

    The Ten Dangers of Sleep Deprivation for Workers

     

    1. Decreased communication: 
When workers are tired, they become poor communicators. In one study, researchers noted that sleep deprived individuals drop the intensity of their   voices; pause for long intervals without apparent reason; enunciate very poorly or mumble   instructions inaudibly; mispronounce, slur or run words together; and repeat themselves or lose their place in a sentence sequence.

     

    2. Performance deteriorates
: Performance declines frequently include increased           compensatory efforts on activities, decreased vigilance and slower response time. The average functional level of any sleep-deprived individual is comparable to the 9th percentile of non-sleep deprived individuals. Workers must notice these performance declines, right? Not quite. In fact, sleep deprived individuals have poor insight into their performance deficits. Also, the performance deficits worsen as time on task increases.

     

    

3. Increased risk of becoming distracted: 
Sleep-deprived individuals have been shown to have trouble with maintaining focus on relevant cues, developing and updating strategies, keeping track of events, maintaining interest in outcomes and attending to activities judged to be non-essential. In fact, research suggests that there is a symbiotic relationship between sleep deprivation and attention-deficit hyperactivity disorder (ADHD) due to the overlap in symptoms.

     

    4. Driving impairments: Due to federal regulations, the trucking industry is well aware of the driving impairments associated with sleep deprivation. However, plant managers are unaware of the ways in which sleep-deprived workers may be dangerously operating machinery (e.g. forklifts or dump trucks). In fact, 22 hours of sleep deprivation results in neurobehavioral performance impairments that are comparable to a 0.08 percent blood alcohol level (legally drunk in the United States).

     

    5. Increased number of errors: 
The cognitive detriments of sleep deprivation increase   concurrently with a worker’s time on a given task, resulting in an increased number of errors. These errors include mistakes of both commission (i.e. performing an act that leads to harm) and omission (i.e. not performing an expected task), which can wreak havoc at any work      facility. Errors especially are likely in subject-paced tasks in which cognitive slowing occurs, and with tasks that are time-sensitive, which cause increases in cognitive errors.

     

    6. Poor cognitive assimilation and memory: Short-term and working memory declines are associated with sleep deprivation and result in a decreased ability to develop and update   strategies based on new information, along with the ability to remember the temporal sequence of events.


     

    7. Poor mood appropriate behavior
: Inappropriate mood-related behavior often occurs in outbursts, as most sleep-deprived individuals are often quiet and socially    withdrawn. However, a single one of these outbursts can be enough to destroy the positive culture of a work              environment and cause an HR nightmare. These behavioral outbursts can include irritability, impatience, childish humor, lack of regard for normal social conventions, inappropriate interpersonal behaviors and unwillingness to engage in    forward planning.

     

    8. Greater risk-taking behavior: 
Brain imaging studies have shown that sleep deprivation was associated with     increased activation of brain regions related for risky       decision making, while areas that control rationale and    logical thinking show lower levels of activation. In fact, sleep deprivation increases one’s expectation of gains while      diminishing the implications of losses.

    What does this mean for your workers? Sleep-deprived workers may be making riskier decisions, ignoring the      potential negative implications, and taking gambles in     scenarios in which the losses outweigh the benefits.

     

    9. Inability to make necessary adjustments: Flexible thinking, preservation on thoughts and actions, updating strategies based on new information, ability to think divergently and innovation are all negatively impacted by sleep deprivation. A worker may be unable to fill a leadership role on request when sleep deprived, resulting in a frustrated management team.

     

    10. Effects of sleep deprivation compound across nights: 
Four or more nights of partial sleep deprivation containing less than 7 hours of sleep per night can be equivalent to a total night of sleep deprivation. A single night of total sleep deprivation can affect your functioning for up to two weeks. To your brain, sleep is money and the brain is the best accountant.

     

    Excerpt courtesy of EHS Today Magazine, 11/24/2015

     

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