What are the Symptoms of Sleep Deprivation?
Monday, August 8th, 2011Our body cannot survive indefinitely without sleep, which is fact, although certain individuals have unverified claims of undergoing years with no sleep. At various times, all of us have suffered from lack of sleep. Maybe it was a new mother who was awake half the night with a screaming, colicky baby. Or perhaps, it was the single guy who stayed out too late partying when he knew he had to work the next day; or simply an insomniac night of tossing and turning where you dejectedly looked at a digital alarm clock that slowly ticked off the hours and minutes toward your waking time. Either way, the next day, you are barely able to drag yourself through the day.
But what I am discussing here is true sleep deprivation. The medical student going through internship and residency is known to work one hundred hours a week, with forty-eight and seventy-two hour shifts not uncommon. Those in the military, especially the people in the Special Forces, suffer lack of sleep for days on end due to prolonged combat patrols. Even a college student, especially during finals week, is known to cram continuously for the entire week. Also, those people suffering from sleep apnea fail to get restful sleep and are actually sleep-deprived, even though they appear to be asleep. In extreme cases, they are like prisoners of war and victims of torture which are deliberately deprived of rest.
Minor sleep deprivation can produce the symptoms every person is familiar with. The number one most common symptom is yawning, an almost involuntary reflex action that is difficult to suppress. Although scientifically unproven, it is generally accepted that yawning is also contagious, spreading rapidly around the area where the tired person is. Being irritable and/or quick-tempered is also a short term symptom. The young child who has not had her nap is a good example of this when she throws a temper tantrum. Either because of lack of sleep or because of the irritability (a symptom itself), stress and higher blood pressure is possible. A severe headache is also common among those who have a lack of sleep. This is partly why those who have a caffeine addiction normally get a massive headache when they try to withdraw from the drug. The body begins to tire because caffeine is beginning to leave the system. In addition, the entire body, especially the face, gives the appearance of no sleep. The most common looks are the well-known bloodshot eyes and bags under the eyes. Those who are sleepy also tend to be more disheveled and careless about personal appearance.
As the human body continues to suffer lack of sleep, other more serious things begin to surface. The muscular system begins to show signs of strain, aches and pain which are not uncommon. Muscle cramps, also colloquially known as a ‘Charley Horse’, while extremely painful at the very least, can even result in bruising or tearing of the muscles affected by the cramp. The Charley Horse is especially prevalent in those who have been subjected to strenuous physical activity prior to the sleep deprivation. Critical diseases have also been linked to lack of sleep.
It has been suggested, although unproven, that insomniacs have far greater blood glucose levels. If true, sufferers of Type II diabetes would continue to experience an even quicker acceleration of the consequences associated with that debilitating disease. Those people who do not already have Diabetes would have a greater risk of getting it, especially those with the lifestyle signs already. There is also a growing belief that wounds tend to heal slower in those without REM sleep, diabetic or not. Another lifestyle cause of diabetes is yet another symptom of lack of sleep, namely weight gain and obesity, which could also worsen the disease. The hypertension and stress asymptomatic of insomnia are also leading causes of coronary disease and heart attacks. Long-term lack of sleep in children and teenagers has also been linked to delay of normal growth behavior, caused by failure to produce cortisol and growth hormones as normal.
The greatest and most rapidly occurring symptom of sleep deprivation is to the brain. In minor lack of sleep, befuddlement and confusion are the most obvious. Those whose brain is at the heart of their job are especially vulnerable, for memory loss and lack of concentration are prevalent. That is why modern medicine is taking a second look at the long hours worked by those with crucial responsibilities, such as medical students, as their lack of concentration could very well put lives at risk. Several reports have been made annually in the United States alone from vehicle crashes caused by lack of sleep and many single-vehicle ‘mystery’ crashes are suspected to be caused by driver fatigue.
As sleep deprivation continues, more serious brain impairments tend to happen. That lapse of memory and judgment from short lack of rest could very well become permanent memory loss, as the brain suffers from remaining alert for extended periods of time. Cognitive reasoning becomes minimal. The student studying for his finals could theoretically do much worse on the tests by doing without sleep, because his ability to concentrate on the questions is impaired. This is especially true for word and math problems, which seem to be affected the most. Motor skills also begin to deteriorate and could also become long-term or even permanent. Certain psychosis, such as Bipolar disorder, has been suggested to have been either caused by lack of sleep, or at the very least exacerbated by it. This is especially true with hallucinations associated with such neurosis as Paranoid Schizophrenia.
In short, it’s important to try to sleep well but without getting in any way anxious about this. Your body will thank you.



