Tag: sleep deprivation

It’s so easy to get complacent working any job, regardless how much safety might be a factor in what you do. Doctors are renowned for running on fumes, as are the military, police and rescue personnel that exist in any trade. Somehow they all manage to get their job done in spectacular fashion, with nobody the wiser that they’ve only gotten a few winks here in there over the last few days.

Sleep deprivation causes accidents at work

But when you abuse your body, disastrous consequences can follow. If you’re lucky, it will just be you who suffers the consequences of sleep deprivation. At worst, lives can be lost.

Look at now famed New York Metro train engineer, William Rockefeller. He’s not noteworthy for heroics, excelling in sports, or scientific innovation. Rockefeller inexplicably nodded off while driving a train with over 100 passengers into a dangerous curve at 82mph in the Bronx section of the city a few years back. Over 70 were injured with 4 being killed. The last thing one conductor reported seeing before the crash was the engineer (Rockefeller) “nodding off” just before the train flew off the tracks (see the New York Daily News article).

Sleep deprivation causes colossal work accidents

A couple of the following at-work accidents resulting from sleep deprivation literally “shook” the world due to their extreme magnitude:

1. American Airlines Flight 1420 (1999)

Crashed American Airlines Flight 1420
photo credit: Wikipedia

There was plenty initial speculation that thunderstorms and overcast conditions were entirely to blame for this tragedy that happened back in 1999. The plane overshot the runway while landing. In total, 11 people including the captain were killed and 105 were injured (official NTSB report can be viewed here).

It was later discovered that the weather conditions did play a significant factor, but only because the flight crew were operating at less than 100 percent. The official stance of the National Transportation Safety Board was that sleep impairment in addition to the nasty weather conditions caused the crash:

“Impaired performance resulting from fatigue and the situational stress associated with the intent to land under the circumstances”

2. Exxon Valdez Oil Spill (1989)

Exxon Valdez oil spill cleanup
photo credit: Wikipedia

There wasn’t any need for speculation as to the cause of this accident which spilled over 250,000 barrels of crude oil into the Bligh Reef in Alaska, amounting to over 10.8 million total gallons of unrefined oil spilled. Much of the crew, including the captain had just spent several of the 22 hours on land drinking alcohol while the massive 987 foot ship was being loaded with nearly 1.3 million barrels of crude.

Third mate, Greg Cousins was sleeping at the wheel when the ship veered off-course, while much of the rest of the crew, including the captain were known to have been tossing back more than a few alcoholic beverages during a portion of this time, making one wonder just how fit they were to even help in any event.

This frightening tragedy didn’t directly kill any human beings, though 4 died during the cleanup effort. The accident did destroy a huge chunk of the Bligh Reef area of the Alaskan coastline (still scarred to this day), killed countless fish, birds and land mammals – along with decimating the local tourism and fish and wildlife industry for decades to come! (read more)

3. Challenger Space Shuttle (1986)

Challenger space shuttle, during take off
photo credit: Wikipedia

There is still much speculation about the true cause of this tragedy, whether human error or a technological failure. What we do know is that several members of the project management team on the ground had slept less than 2 hours before launch, likely in anticipation of the event and all the last-minute decisions that are needed when propelling a huge rocket filled with human beings into space.

When listening to what the Presidential Commission assigned to investigate the crash had to say, there’s little doubt what they and NASA truly thought about the cause of the incident:

“The willingness of NASA employees in general to work excessive hours, while admirable, raises serious questions when it jeopardizes job performance, particularly when critical management decisions are at stake.”

Regardless, seven of the bravest people to ever walk the planet died in this crash, which ended in a massive rocket-fueled boom. The impact felt worldwide was even more so, as the whole of the human race had such high hopes for what the shuttle team would learn and accomplish on their ill-fated mission. If you’re brave, watch this recently found video shot by Stephen Virostek before and during the crash. It’s not for the faint of heart as Virostek’s wife, Hope, is heard cheering on NASA’s first Teacher in Space, Christa McAuliffe (the first civilian, and teacher selected to go to space) before the ship erupted in a ball of flames.

4. Chernobyl (1986)

Chernobyl playground
photo credit: Jakob Pfeiffer / Flickr

This one is the worst of the worst sleep-related disasters known to man. An epic nuclear reactor explosion in the Ukraine that had the world reeling in fear of the totality of the fallout. This is another tragedy that had more than just sleep deprivation to blame. There were a number of design and procedural errors made leading up to the event, but it’s well documented that many of the engineers in charge of the plant had been at work in excess of 13 hours when the explosion shook Europe and the world to its core.

Strangely, the explosion only killed 31 people instantly, though two plant workers died from radiation poisoning within 24 hours. The real damage occurred in the weeks, months and years following the accident with the cancer, birth defects and other health problems that are still occurring from the fallout to this day.

A report released by the World Health Organization in 2006 stated that:

“In reality, the actual number of deaths caused by this accident is unlikely ever to be precisely known.”

Some put the global death toll resulting from Chernobyl at somewhere in the range of 985,000 as of 2006. 400 times the radioactive material was released from this explosion than the USAF’s Hiroshima bombing at the end of World War II. Making this tragedy and the nuclear poisoning it caused one that will last for generations to come (Wikipedia).

Still Planning to Burn the Midnight Oil Indefinitely?

Or even occasionally?

Burning the midnight oil
photo credit: Leo Hidalgo / Flickr

As you’ve learned, the consequences of sleep deprivation on the job can have disastrous effects that are beyond what most of us are capable of comprehending. Imagine the regret of surviving a work disaster of your own creation? Lives that could have been saved had you took the time to do the one thing we all need even more than food or water on a daily basis?

Sleep related accidents can happen without warning and their effects can last for what might as well be an eternity, such as in the case of the coastal and marine destruction caused by the Exxon Valdez or the permanent “nuclear hotspot” created by Chernobyl that’s left a massive chunk of land in the Ukraine unhabitable for at least the next 20,000 years.

Now if you haven’t taken the time recently, get to sleep! Getting enough of it is one thing none of us should ever regret.

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The body can go at least 2 or 3 weeks without any food. Depending on the temperature and your activity levels, it can go at least 3 – 5 full days without water. Neither of these factors is a concern for most people living in a developed country, regardless of their economic situation.

But what about sleep?

Why do so many of us take this, the most important of all daily activities, so casually?

How many would sacrifice an hour or two to spend extra time with a friend? To watch the latest and greatest CGI feature from Marvel Comics at the theater?

A massive majority of people spend sleepless nights lying in bed thinking about all the stressors they had to deal with that day, and the mountain of worry that will be waiting for them when they wake up.

Somewhere between 30 and 50 percent of Americans suffer from insomnia more than once per week. Even worse, a few years ago it was estimated that upwards of $64-billion is spent by North Americans on prescription and other treatment costs for insomnia on an annual basis (source).

Sleeplessness and insomnia are an epidemic that causes serious health problems.

What are the effects of long term sleep deprivation?

Here’s a few health-crippling reasons why you need to spend more time minding your sleep habits.

1. Genetic changes

A 2013 study out of the UK observed that prolonged sleep deprivation of just one week resulted in up to 700 genetic changes in our body. What were some of these changes, you ask? Just some of the most important factors for controlling disease, metabolism, stress management and – surprise, surprise – getting processes needed to get adequate amounts of sleep, just to name a few. It’s quite safe to say that none of the results gleaned from this research were in favor of getting less sleep.

2. Poor cognitive performance

This side effect will come as no shock to most who read it. Those who can still thrive mentally after even one night of poor or no sleep are so rare they likely don’t even exist. Though if you’ve ever witnessed a hospital emergency room in action, many of us would put medical healthcare providers in the “maybe” column for professionals who can indeed run on mental “fumes”. Consider that every single process in the body has to be routed through the brain and that it can become tired just as easily as any other muscle (yes, it’s a muscle). When it becomes tired, things like cognition and memory go straight out the window.

3. Obesity and weight fluctuation

There’s a very compelling scientific reason behind sleep deprivation’s effects on bodyweight. For some strange reason, the body ramps up its production of the hormone responsible for our hunger response, called ghrelin. Worse, leptin, the hormone that tells our brain our stomach is full and to stop eating is also reduced as we get less sleep. Essentially, sleep deprivation makes us want to eat more food, more often, and the “off switch” for hunger stops working (source).

Sleep deprivation disrupts eating habits

4. Higher risk of diabetes

Unfortunately, this sleep-deprivation-related problem extends far past the initial insulin resistance that’s leading us toward the current projections of 366,000,000 type-2 diabetics in the year 2030! There have been numerous studies into less-than-optimal sleep schedules and increases in insulin resistance. These studies aren’t promising for those who like to burn the midnight oil often. Sleeping less than 7 hours per night has a marked increase in insulin resistance, even in the face of a low sugar diet (source). Diabetics are more likely to develop diseases of all kinds including cancer, kidney, liver, and have a 65% higher heart disease and stroke risk!

5. More risk of heart disease and stroke

Insulin resistance and high blood glucose is just the beginning of a vicious cycle brought on by diabetes. As the disease progresses, cholesterol levels rise and the good/bad ratio between LDL (bad) and HDL (good) falls by the wayside, serum triglycerides rise, and arteriosclerosis (ie., narrowing of the arteries) becomes near inevitable without intervention. And this is just one factor in heart disease. Consider that sleep deprivation will have you in a constant state of stress due to higher cortisol (ie., stress) hormones, be carrying more weight around than is ideal for your body type, and that you’ll be eating more of the foods that you shouldn’t. All this makes for a perfect recipe for heart disease and stroke.

6. Higher chance of osteoporosis

Who would think that sleep deprivation can make our bones weaker and more susceptible to fractures and breakage? While long-term studies have only been performed on mice and rats at this stage in time, the results indicate that we need sleep just as badly as we do calcium in order to ensure strong bones. Even more frightening is how fast the rodents who were studied started to lose significant bone density. Just 72 days is all it took for the early onset of osteoporosis to begin.

7. Increased risk for certain cancers

This is another health risk that doesn’t have a great deal of tangible data to back it up. But keep in mind that the body needs sleep to recoup from inflammation and injury, and cancer is a disease born largely due to uncontrolled inflammation in the body. This study showed over 300 out of 1240 patients diagnosed with colorectal cancer got less than 6 hours sleep per night. Another study, discussed here, showed an increased recurrence of breast cancer in women who get less than 6 hours of shuteye every night.


If you don’t relish the idea of dealing with these or any other sleep-deprivation-related health disorders in the future, it might be time to rethink just how much sleep is actually idea for you, if you don’t currently get the 7 – 8 hours that’s currently recommended by most sleep experts.

So strange that the most important daily activity humans and other animals need so much has the power to end our life earlier than nature intended, isn’t it?

Here’s wishing you a good night’s sleep!

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