Working Nights

2010 Sleep in America Poll Released!

The National Sleep Foundation (NSF) has just released the 1st poll to examine sleep among four ethnic groups in the United States: Asians, Blacks/African Americans, Hispanics and Whites-the 2010 Sleep in America Poll. Although significant differences in the sleep habits and attitudes of each group are revealed, there are also a number of interesting similarities. The poll found that more than three fourths of respondents from each ethnic group agree that poor sleep is associated with health problems. It also showed that each group reports similar experiences missing work or family functions because of fatigue. This is of extreme significance to shift workers who routinely average less sleep than day workers.

The NSF is committed to understanding people’s sleep needs and giving them the tools necessary to get the optimum amount of rest. Read more about the poll and its findings at the NSF’s website…

A Great Book to Read over the Holidays – “My Stroke of Insight,” by Jill Bolte Taylor

Book Review – My Stroke of Insight – a Brain Scientist’s Personal Journey, by Jill Bolte Taylor, Ph.D.,

Taylor’s book provides a unique education about our brains, in particular, about how the two different hemispheres of our brains work – together and independently.  Taylor provides insight into the impact of impaired brain functioning, something that is critical to the health and safety of shift workers and to the success of shift work operations.  Shift workers are known to exist on less than the optimal amount of sleep ~ typically 5 hours versus 7-8 hours; while obviously not as severe as a stroke, sleep deprivation has been shown to have a significant negative impact on the brain’s ability to perform.

There have been many studies on the impact of sleep deprivation on the brain.  In one study (Dai-Jin Kim et al, International Journal of Neuroscience, 2001), sleep deprived subjects showed no differences in distractibility, physical and visual functioning, reading, writing, arithmetic, and intellectual processes when compared to study participants who were allowed to sleep.  However, cognitive functions such as motor skills, rhythm, receptive and expressive speech, memory and complex verbal and arithmetic functions were decreased after sleep deprivation.  In another study (Drummond et al, Nature, 2000), researchers found “dynamic, compensatory changes in cerebral activation during verbal learning after sleep deprivation.” The researchers found that the prefrontal cortex (controls decision making and following through with thoughts and actions) and the parietal lobes (sensory integration) were key factors in allowing the subjects to function after sleep deprivation.  In other words, our brains work hard to compensate when we are sleep deprived and this may explain why some people claim they can exist on very little sleep – something we don’t recommend.

Read this article…

Lowering Stress and Anxiety for Shift Workers (and for others too!)

Stress and anxiety are normal parts of life. Sometimes we all need a little angst to keep us going: to make the best presentation, ace the test, or get the job offer. But over time, the effects of too much tension can be mentally and physically taxing.

Extended periods of stress can cause destructive changes in the body, such as depression or a suppressed immune system, potentially leading to heart disease, stroke, or cancer. Stress and anxiety can be felt physically, appearing as an increased heart rate and high blood pressure, sweating, dry mouth, tight muscles, twitching, abdominal pain, and headaches. Emotional responses to stress may include feeling restless, being unable to concentrate, and talking negatively to yourself.

Shift workers experience unique challenges in their life and jobs that can lead to increased tension. Without proper planning, work/life/family balance can get completely out of synch as a result of working rotating shifts or long hours. As a result of the struggle to adapt to ever changing work schedules, shift workers often don’t get enough sleep.

While most sleep experts suggest seven to eight hours of sleep is needed to feel well-rested, most people don’t get this much, and shift workers get even less than the day time population. The National Institute of Health has reported that people who work at night or have frequent major shifts in their work hours, or who have inactive lifestyles, are at a greater risk of developing insomnia. Many shift workers also report that they don’t exercise frequently, so the problem only gets worse. Read this article…

New York Times Opinion Supports Napping and Working Nights Agrees

Here’s the letter to the Editor and the link to the original editorial:

August 5, 2009
To the Editor:

Re “To Nap, Perchance to Dream” (editorial, Aug. 5):

I agree wholeheartedly with the statements made about the positive effects of a good nap.

But as an expert in researching, writing and consulting with numerous companies regarding employees’ readiness for work, I know that many not only allow naps, they even provide napping facilities.

These businesses recognize just what the editorial pointed out, that “short naps enhance alertness and productivity.” Our work on how our bodies’ circadian rhythms affect workers’ abilities to focus and concentrate, particularly in businesses running 24/7, supports that even just a 20-minute nap can be highly invigorating.

Betsy Connolly
President, Circadian Age Inc.
Wayland, Mass., Aug. 5, 2009

A version of this article appeared in print on August 6, 2009, on page A28 of the New York edition.

Restless Legs Syndrome (RLS) – Update

Up to ten percent of the population may suffer from Restless Leg Syndrome, a misunderstood and often ignored disorder. It affects more women than men, and causes more discomfort at night than during the day. While some people who suffer from RLS may not realize it is a true disorder and avoid medical help, RLS harms sleep patterns and may be worsened by uneven sleep schedules of shift workers. Read this article…

Running on Empty- Safe Driving on a Shift Work Schedule

While people worry about the dangers of sky diving, bungee jumping, and other death-defying activities, in fact one of the most dangerous things you can do is turn that little metal key in your car every day. In the U.S., someone dies in a car accident once every 13 seconds. Since shift workers experience many of the symptoms that are the most frequent causes of car crashes- fatigue and drowsiness, nodding off from lack of sleep, drug use, and use of sleep aids- driving safety is especially important from shift workers. The perils of a commute after a long day (or especially after working nights) can be deadly.
Read this article…

Integrating Shift Workers Into the Overall Business Environment

Happy employees are productive. Happy shift workers gain more satisfaction out of their shifts, have better levels of fitness and more restful sleep, and cost their company less in absences and health care costs. An efficient way to raise shift workers’ confidence level and performance is to emphasize their connection with the overall company, a tie that often goes over looked throughout the night shift hours. Since managers and more experienced workers most often work the day shift, though tiredness at night might require more care for the night shift to do the job safely and well. The absence of feedback and encouragement for people working nights and the potential of fewer training hours for shift workers does not take into account unique difficulties shift workers face. Making sure extended hours workers don’t get ignored ensures higher morale and productivity throughout the whole 24 hours. Read this article…

Women and Sleep…Sleep Stress and Sleep Disturbances…Welcome to the Bedroom!

Kids and caffeine, stress and sleep apnea, menstruating giving way to menopause: women have a lot of unwanted guests in the bedroom when it comes to getting enough sleep. Studies have shown sleep makes a huge difference in concentration, memory, alertness, and even weight loss and happiness. Staying safe at work depends greatly on workers getting enough sleep. Over a quarter of shift workers report making mistakes from inattention several times a month, and almost half report having nodded off while driving to or from work. These tired mistakes can have sometimes fatal consequences. A healthy sleep schedule can save lives. Read this article…

The Impact of Fatigue on Driving

Most people know that driving after drinking enough alcohol could be a death wish, but driving home after a seemingly endless shift could be equally dangerous. After 22 hours without sleep, you act the same behind the wheel as if you had a blood alcohol level of 0.08, the legal driving limit. It won’t get you pulled over (yet, although several states have laws pending to outlaw driving while drowsy) but falling asleep at the wheel can send you hurtling towards a tree or another vehicle with no control over your car just as easily as alcohol or drugs can. The urge to reach home and bed can sometimes overtake caution on the road. Truck drivers and night-owl teens are also greatly affected by this risk, which often goes unnoticed in our up-and-at-’em culture. Read this article…

Linking Sleep Loss and Obesity

Results from a 2003-2004 National Health and Nutrition Examination Survey indicate that an estimated 66 percent of U.S. adults are either overweight or obese. The same survey indicates that an estimated 17 percent of children and adolescents ages 2-19 years are overweight.

Read this article…