An emerging area of research has begun to focus on recovery processes from acute total sleep deprivation and chronic sleep restriction. Results from these studies suggest that recovery process may be slower and more complex than originally thought. Recovery appears to be affected by the type (acute versus chronic) and severity of sleep loss, recovery sleep duration and the number of days allowed for recovery and aspects of neurobehavioral functioning appear to recover at different rates. Additionally while an individual may report feeling recovered, their performance may remain impaired increasing risk for accidents and injury. It is therefore critically important to understand how much sleep people need to recover from periods of sleep loss. …show more content…
Two important sleep restriction studies that also included a short in-laboratory recovery phase were those by Dinges and colleagues11 and Belenky and colleagues.4 In the former study, sleep was restricted 33% below habitual sleep duration (average 4.98, SD 0.57 per night) for seven consecutive nights, after which participants were allowed one or two 10 hour recovery sleeps.11 In the latter, participants were permitted either 3, 5, 7 or 9 hours in bed each night, for seven nights, followed by three 8 hour recovery opportunities.4 These studies show that either two 10 hour or three 8 hour sleep opportunities were sufficient to recover performance to baseline levels. Although, participants felt that their functioning was restored with subjective reports of sleepiness and performance recovering to baseline; indicating that subjective measures do not appear to accurately parallel objective measures of neurobehavioural recovery. These findings suggest that more than 2 or 3 nights of extended sleep may be needed to return neurobehavioral functions to baseline levels. This may be especially important in situations where individuals are not able to choose or extend the length of their recovery sleep …show more content…
Importantly, it was observed that each recovery sleep dose had equivalent restorative value (i.e. linear) for sleep and objective sleepiness measures. However in contrast, recovery of neurobehavioral outcomes, sustained attention and subjective sleepiness, was exponential indicating that the restorative value of the recovery sleep doses decreased with increasing sleep
In a laboratory study of sleep deprivation, researchers employed a variety of techniques to keep
The function of sleep is to promote restoration. The human body accumulates damages due to impact strain and from reactive oxygen species that damage cells and buildup during times of activity (Sleep-wake cycle, 2006). During sleep, most of the body's systems are in an anabolic state, helping to restore the immune, nervous, skeletal, and muscular systems (Sleep-wake cycle, 2006). Most of the body has restorative processes that can supplement the restorative processes that happen during sleep for long periods of time, but the brain is more reliant on regular intervals of sleep for restoration as quiescent restoration is insufficient (Sleep-wake cycle, 2006). When the body does not get enough sleep, most body functions work at diminished capacity. (Brain Basics, 2017). Sleep deprivation is defined as obtaining inadequate sleep to support adequate daytime alertness (Kryger, Roth, & Dement, 2005). The pathological effects of sleep deprivation can lead to undesirable physiologic
Since sleep has been demonstrated as so important in early recovery, it is important that it is addressed. What is even more important, are potential other
This essay focuses on evaluating three functions of sleep. These functions include mental health (Jackowska et al, 2011), cardiovascular disease (Kronholm et al, 2011) and memory (Hu et al, 2006). The key aspects are explained in detail with regards to studies. The findings from the studies will help justify the function and it’s involvement with sleep. Sleep is important for an individual’s well being, survival, brain development, emotional regulation, cognitive function, memory, and in order to protect mental and cardiovascular health. An individual should sleep for 6-8 hours. A recent suggestion by the American Academy of Sleep Medicine recommended that an individual should sleep for minimum 7 hours. The quality of sleep is significant to maintain healthy brain functions. Evidence, indicating that good sleep quality is essential for mood and health then duration (Chandola et al, 2010). The researches implied will enable the understanding of the functions of sleep and evaluate the evidence of each of the functions, including advantages and limitations. Furthermore ethical issues are discussed, and an overall summary of the essay is briefed.
Success in life is typically measured by the result of what is accomplished during the waking hours. The degree of effectiveness of those hours however, depend on effective rest. “Sleep is integral to the health and well-being of all people” (Wells 233). Sleep is simply defined as the body’s rest cycle – a time to recharge. The widely accepted metric for normal or sufficient sleep is about 8 hours of uninterrupted sleep. When this metric is not met, either through total sleep loss or accumulated sleep debt, the effect can be dire, “Sleep deprivation results in poor memorizing, schematic thinking, which yields wrong decisions, and emotional disturbances such as deteriorated interpersonal responses and increased aggressiveness” (Orzeł-Gryglewska 95). Sleep deprivation hinders the abilities of the mind, harms the body, and shortens length of life.
Sufficient sleep is a biological necessity for the normal functioning of humans, it allows the body to rest and to replenish itself so that it is able to serve its function of living. In addition, mental and physical health depend on the amount of sleep we get. Most adults and students value work and college much more than sleep, this is due to the academic, career, and materialistic demands. Researchers have noted a positive correlation between lack of sleep and decreased physical health, mental health, and academic performance. Sleep consists of two cycles: non-rapid eye movement (NREM) and rapid eye movement (REM), which are sleep patterns that alternate throughout the night. Firstly, sleep begins with non-REM sleep lasting about 90 minutes followed by REM sleep lasting 10-30 minutes, then the cycle repeats itself. REM sleep is the most important phase of sleep because the body is internally awake, with waking-like brain activity, yet asleep and externally calm. Thus, an uninterrupted REM phase of sleep is necessary for integrating previously learned material, and giving the individual a feeling of being well rested and refreshed. Many individuals will put sleep off so that more work hours, and school work can be fit into the day in order to get a better outcome such as job promotions or better academic grades, but I believe that sleep deprived people show a low performance in daily tasks due to suffering from mental, and physical health disorders.
Despite the critical importance of sleep to general health, there remains a large population afflicted by traits that inhibit them from sleeping, or sleeping well. Again, due to the important role of sleep, one would anticipate a decrease in sleep disorders over the
While much research has been conducted regarding sleep deprivation Tatar J, et al. 2006 demonstrates the results of sleep
To find out how sleep deprivation affects humans, Dement (1960) connected participants of his study to an electroencephalogram in his sleep laboratory. The participant got woken up any time they showed signs of entering REM sleep. I was found that REM sleep deprivation made test participants more aggressive and suffered from poor concentration than the control group. They also tried to enter REM sleep straight after going to sleep. They made 26 attempts to enter REM sleep by the seventh night. It is to conclude that REM sleep is necessary for proper brain functioning as the brain goes into REM rebound, when deprived of
Even though the number of hours differs for different people, the mental and emotional affects damage all. Lack of sleep effects the brain’s
Sleep is a basic human need, it affects how we function on a daily basis and is essential for a person’s health and well being. Sleeping allows the body to recharge and affords the brain the opportunity to integrate important facts, memories and emotional impressions recorded from the previous day. There are five stages of sleep that people go through: Stages one, two, three, four, and Rapid Eye Movement (REM). Sleep is important for all human beings but the amount of sleep each person needs is dependent on many different factors, for example age. Infants generally need sixteen hours of sleep a day, teenagers need about nine hours, and for most adults, seven to eight hours a night is ideal. If people do not sleep enough for several nights they
Sleep is crucial for the stability of one’s mind, body, and temper. When an individual enters a sleep deprivation they tend to have exhaustion, irritability, and an inability to focus that can only be remedied by several nights of healthy sleep. The healthy
It has been scientifically proven that sleep is a crucial biological task that our body performs to maintain optimal functional capacity(Xu, Q. 2010). According to data collected by National sleep foundation short sleep deprivation is linked with many side effects, such as, increased risk of
Sleep is essential to life, as it can affect how we look, feel and perform on a daily basis. Sleep deprivation can have a major impact on our overall quality of life. On average, we spend a third of our life asleep. Sleep regenerates our brains and bodies, and without it we cannot function effectively. During sleep the body undergoes several physiological and psychological processes; processing information, learning and consolidating memories. New knowledge about the importance of sleep, the health consequences of chronic sleep deprivation, and sleep disorders has suffered in recent years. Chronic sleep loss and untreated sleep disorders have a profound and diverse impact on health, behavior, and quality of life (Robotham, 2011).
What do the effects of sleep deprivation have on people? When a person does not get enough sleep, he or she is depriving his or her body of something that it needs. A delightful sleep is one of the most satisfying human experiences with a role to play in supporting a good mood and cognitive acuity as well as in promoting physiologic balance and resilience (Chittora, Jain and Suhalka). People think because they get an insufficient number of hours of sleep, they will not have an emotional impact by it. Sleep is a required need for peoples’ day to day life to be able to perform and stay healthy emotionally and physically. The effects of sleep deprivation are an issue because it affects mood, performance, and health.