knowledge on sleep but are still looking for better treatments * How can we sleep in different habitats? Underground‚ deep sea‚ and space * Recently discovered: people in a study on space sleeping found that the individuals went lethargic and had depression issues‚ didn’t move much and avoided crucial exercise (important because we don’t want to send depressed people on long voyages) * Origin of the word sleep: somnus (roman god of sleep) and hypnos (greek god of sleep)= part of the
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research illustrates the alteration of sleep deprivation on attentional networks. The researchers found a problem with complete focus in everyday life‚ from lack of sleep‚ and wanted to figure out as to why this came about. Researchers of this experiment hypothesize that‚ “the tonic component of alerting interacts with both attentional orienting and executive functions” (Exp Brain Res 1)‚ so henceforth‚ their experimental research study was conducted to see if sleep deprivation alters attentional function
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foundation for much of what we know about sleep was gathered approximately 40 years ago by researcher‚ Michel Jouvet. This French scientist studied the effects of gross brain lesions and brain transections on sleep behavior and related phenomena. It was Jouvet who first suggested that a brainstem region is responsible for the initiation of events that result in the stage of sleep called REM sleep. REM sleep is a stage associated with rapid eye movements‚ a high degree of brain wave activity‚ relaxation
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Sleep Paralysis: Awake But Still Asleep A person may wake up and find himself unable to move or speak as if he is frozen. He also may hear footsteps‚ see a ghost-like creature‚ or feel someone sitting on his chest. Throughout the history‚ people considered this phenomenon as work done by evil spirits. However‚ the modern science can explain the terrifying event as a Sleep Paralysis. A Sleep Paralysis is possibly a hereditary disorder in which one experiences very frightening seconds or minutes
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Eagle eye From Wikipedia‚ the free encyclopedia For other uses‚ see Eagle Eye (disambiguation). Eye of a Golden Eagle The eagle eye is among the strongest in the animal kingdom‚ with an eyesight estimated at 4 to 8 times stronger than that of the average human.[1] An eagle is said to be able to spot a rabbit 2 miles (3.2 km) away.[1] Although an eagle may only weigh 10 pounds (4.5 kg)‚ its eyes are roughly the same size as those of a human.[1] As the eagle descends from the sky to attack
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Purpose: To inform the audience about what sleep is and how it helps the body. Central Idea: That sleep is good for you and you should get your eight hours of it! Introduction: I’m sure everyone likes sleep. Everyone needs sleep to keep the least bit active through out there day. Sleep is an important factor for your body to restore energy. Sleeping is a time to rest your body from all the hard work you have done. It is relaxing so deeply that you lose consciousness of your surroundings. Preview
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Abstract Sleepwalking‚ also known as somnambulism‚ is a sleep disorder belonging to the parasomnia family. Sleepwalking is a disorder that occurs when people walk or do another activity while they are still asleep. These activities can be as benign as sitting up in bed‚ walking to the bathroom‚ and cleaning‚ or as hazardous as cooking‚ driving‚ having sex‚ violent gestures‚ grabbing at hallucinated objects‚ or even homicide. The prevalence of sleepwalking in the general population is estimated to
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Sleep Cycle You may be surprised to learn that we still don’t fully understand why people need to sleep and what purpose sleep serves. Doctors and researchers had thought many years ago that sleep was a single state of being that was distinguished from waking. However‚ we now know that sleep itself is divided into two distinctly different states: REM‚ or rapid eye movement sleep‚ and non-REM sleep. Non-REM sleep is the state of sleep entered when we first start to doze off. Non-REM sleep state
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Sleep is a physical and mental resting state in which a person becomes relatively inactive and unaware of the environment. In essence‚ sleep is a partial detachment from the world‚ where most external stimuli are blocked from the senses. Normal sleep is characterized by a general decrease in body temperature‚ blood pressure‚ breathing rate‚ and most other bodily functions. In contrast‚ the human brain never decreases inactivity. Studies have shown that the brain is as active during sleep as it
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Stages of Sleep The EEG (Electroencephalogram)of a waking person is clearly different than that of a sleeping person. The difference in EEG patterns that occur during sleep has made it possible to divide sleep into five different stages. Stage One We experience stage one of sleep when we are half asleep and half awake; our eyelids feel heavy‚ we feel groggy and suddenly without notice we fall asleep. Stage one counts for more or less 5% our total sleep during the night. Stage
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