The Science of Sleeping

This investigation examines is it possible for light pulses to alter the motor skills, and cardiac movements of biological life forms. Is it possible to change how biological lifeforms functions if we were to shine a light on them every hour at night? Knowing how most animals work, and from that of human experience I can say that light is what makes us stay awake; therefore if we have a light shined on us every hour would we lose sleep? These are the type of questions I will be answering throughout my extended essay. I will talk about how our sleep is affected by light, and monitor this so I can then record the data. I will also be discussing why we sleep. Which you may be wondering how this ties into light, however light does damage our skin

This is a short article written by a collaboration of people by a company named Today’s Science. Their main goal was to describe the pattern of sleep a human goes through during the night. This cycle is called NREM and REM, non-rapid eye movement and rapid eye movement. They mostly describe what happens during sleep because without sleeping you could not dream. Dreaming occurs during the rapid eye movement cyc

Also known as night terrors, these episodes are often paired with other prarsomnias, such as sleepwalking. A Parasomnia is an undesired occurrence during sleep, such as sleep talking, sleep walking, and night terrors. During these sleep terror episodes, an individual might kick and thrash around while still unconscious, stare wide eyed, scream or shout, and so on. Night terrors are said to be able to occur for a period of up to 30 minutes, once about that much time has passed, the person will once again lye down and go to sleep. Once the next day comes around the corner, usually the child or adult will not have any recollection of the event, but they at times remember small fragments of the

Circadian rhythm is another sleep disorder that has to do with our body functions. In this case, our body clocks are off, due an internal change or external factors like a change in time zones or regions where a midnight sun occurs during a 24-hour period. Bright lights in a room have a similar effect on sleep.

There are two types of sleep: non-rapid-eye-movement (NREM) sleep, which is divided into four stages and rapid-eye-movement (REM) sleep. A sleep episode begins with a short period of four NREM stages and finally goes to REM. However, individuals don’t remain in REM sleep for the whole night sleep; it will loop between stages of NREM and REM throughout the night. The function of alternations between these two types of sleep is not yet understood, but irregular cycling and absent sleep stages are associated with sleep disorders. (1) Sleep patterns change continuously and considerably with age. The general trend is that sleep efficiency decline with age. Newborns sleep about 16 to 18 hours per day, young children (age 2- age 5) from 11 to 13 hours, adolescents from 8 to 10 hours, adults from 7-9 hours and elderly people are more complicated because of individuals’ health status, age, gender, work, and emotion. (What Happens to Your Body When You Don’t Get Enough Sleep). Every report has a different range of sleeping hours because some people have jobs at midnight, and they cannot sleep at night. Many parents don’t get seven or eight hours sleep because they need to feed their children or change the diaper when their children need it. Many people don’t really know how many hours they need to sleep for a night because they are busy with their jobs and always work

The first example the author uses is a young adult name Randy Gardner. For a science project, he has deprived himself of sleep for 11 days in a row. A scientist named William Dement kept track of Randy’s brain function during the course of the experiment. Early on in the experiment, his symptoms included: forgetfulness, nausea and irritability. After sleep deprivation for five days he was experiencing paranoia, symptoms of Alzheimer’s and severe disorientation. During the last few days he was experiencing trembling fingers, slurred speech and a loss of motor function.

Fifth Stage REM Rapid-Eye-Movement Sleep, while in REM breathing rates, brain activity increases and decreases, and brain waves are faster and smaller. Paradoxical sleep or active sleep refer to REM the reason for this is because brain, body become heightened and muscle movements are restrained but can twitch this is so dreams are not acted out. REM can last for up to fifteen min. From stage one NREM to REM sleep has taken about ninety min. For the rest of the night’s sleep cycle, it bounces between NREM and REM.

One of the most fascinating natural occurrences known to science is something everyone's body requires them to do, this strange phenomenon is sleep. Sleep is not fully understood by anyone, there are too many variables and unanswered questions to discover what sleep is for and why the human body stresses sleeping so much. Dreams are just as undiscovered as sleep. There are many observations made about dreams and what parts of the brain are utilized during these inter-sleep hallucinations. But like sleep, there is no official reason or meaning behind it. Sleep and dreams, although strange and without apparent purpose, reveal many things about an individual, his or her habits, and potentially innermost subconscious thoughts.

The stages of non-REM sleep, stages 1–3, are defined by EEG activity. Slow-wave sleep in stage 3 is the deepest stage of sleep. Alertness consists of desynchronized beta activity (13–30 Hz); relaxation and drowsiness consist of alpha activity (8–12 Hz); stage 1 sleep consists of alternating periods of alpha activity, irregular fast activity, and theta activity (3.5–7.5 Hz); the EEG of stage 2 sleep lacks alpha activity but contains sleep spindles (short periods of 12–14 Hz activity) and occasional K complexes; stage 3 sleep primarily consists of delta activity. About 90 minutes after the beginning of sleep, people enter REM sleep. Thereafter, cycles of REM and non-REM sleep occur in periods of approximately 90 minutes. Muscle tone decreases throughout the stages, resulting in deepest relaxation and paralysis in REM sleep (Carlson & Birkett, p. 268).

Out of the four main sleep theories, I believe cognitive development best relates to the events of today, and the medical procedure Joel received. I believe cognitive development relates well to the events of today because as said by G. William Domhoff (2014) “dreams dramatize our wishes, fears, concerns, and interest in striking scenarios that we experience as real events.” If you take a look at the categories of dream content Domhoff states, you realize most of your dreams you have had before fall into one or more of those categories. If you were to think back you could probably recall waking up after having a nightmare upset and with a racing heart. This is because dreams are so dramatically real like Domhoof states, and this explains why

Although scientists are unsure why we sleep, they do know how sleep works. There are two phases of sleep: Rapid Eye Movement (REM sleep), and Non-Rapid Eye Movement (NREM sleep). These phases help form whole sleep cycles, and a complete cycle lasts around ninety to a hundred ten minutes. If you sleep for eight hours, you will go through about five cycles every night. During these cycles, you are mostly in NREM sleep. REM sleep only lasts for about ten minutes of the cycle. However, as the night progresses, NREM sleep decreases and REM sleep increases. Every cycle of sleep has five stages. In stage one, you will get NREM sleep. You begin to lose muscle tone, which causes twitches and hypnic jerks. You also have hypnagogic hallucinations and

Rapid Eye Movement(REM) has been correlated with dreams and sleep physiology. It has been tracked by brain waves and muscle movements. Non-Rem(NREM) sleep is the first phase which occurs for 1-7 minutes and the easiest to be interfered with. The brain begins firing betawaves every 15-30 seconds. After a while the person becomes asleep and breathing regularly between 6-8 seconds in the second stage. The heart rate begins to slow down and so does the blood pressure. In the third stage there are more thetawaves along with sleep spindles(sigma waves) and k-waves. Most of the noise are lock out and the heart rate and blood pressure are decreasing. In the fourth phase there are thetawaves in the appearance of delta waves firing at 1-5 seconds. The last and final stage, the person is in their deepest sleep and it is very difficult to wake up. The heart rate and blood pressure are at their lowest and the delta wave are blasting every 1-5 seconds.

Many biotic scientists believe that sleep is a positive role, which is necessary for human's life. It has been shown that there are four sleep stages basics, and a dreamer has to have an NREM sleep which is before the REM sleep. Shafton (1995) states that when a person lay to sleep, they enter sleep onset or stage one by closing their eyes, but their eyes still have uncoordinated movements (SEMs). After a short time, they move to the next stages, which are two, three, to four sleep stage, and that takes ninety minutes to complete a sleep cycle. He also explains that during sleep stages two to four, the eye movements are absent, which is known as NREM sleep. In 1953, the REM was found by Aserinsky and Kleitman, which they explained it as a rapid

The average person sleeps around four months a year, begging the question why do humans dedicate such a large portion of our time asleep? One of the key components of sleep are dreams, many psychologists have attempted to figure out why dreams are beneficial to us, some of these theories include: Wish-fulfillment, problem solving, replay, and activation-synthesis. Through analyses of my dream, I will demonstrate that activation-synthesis is the most logical explanation as to why we dream.

First thing’s first. What is language acquisition? Well the term refers to the process humans take to develop and attain a form of communication.