8 Hours sleep is a myth and it is unhealthy for human do you know that ? know more.
07 Dec 2019 18:45:07
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Sleeping is necessary for every species and we human have seen the other species taking nap after every few hours, animals took sleep for few hours and then woke up again they sleep but we human don't sleep like them, we just sleep at night wake up at morning and do our work for rest of the day long, because sleep is vital for health and our bodies require sleep in order to maintain proper function and health so we scheduled the sleeping time as per basis of our working time that it won't affect our working timeline.
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All human are programmed to sleep each night as a means of restoring our bodies and minds but do we know our Circadian rhythm ? Circadian rhythm or clock is our body's internal biological clock, it's actually sleep/ wake cycle or body clock, this function is a natural, internal system that's designed to regulate feelings of sleepiness and wakefulness over a 24-hour period, it's programmed within us and for every species on earth. If you ever wonder why most of us feel the desire to sleep at the post-lunch time, basically afternoon crash, between 1:00pm and 3:00pm and then feel strong sleepiness again between 2:00am and 4:00am ? Here is the answer, because this is how we human programmed by nature.
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Well, this programming system also can vary from person to person that's why some people are morning person and others function best in the evening, so to understanding your body's internal clock or circadian rhythm is the first step to understand is sleep and it's nature. The circadian rhythm don't work same always, it can change as you age by time to time. You may have noticed that lots of people wake up during sleep, it's a fact, most people wake two or three times during the night and then unable to sleep, this happen because we programmed like this. After passing our teens, sleep tends to be lighter and awakenings during sleep became more frequent than ever and women by the age of 50, it's normal for them to wake 3-4 times per night, this is how our circadian rhythm works.
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You will be shocked to know that we human originally programmed to sleep in two shifts, this eight-hour sleeping myth is a very recent thought, Anthropologists found two shifts sleeping system started to disappear during the late 17th century and have founded evidence that showed during pre-industrial Europe, two shifts sleeping was considered as normal sleeping habit. Those days, first shift sleep was determined not by as a set bedtime like we habituated to think today, but by whether there were things to do, so between two shifts sleep, on the waking period people were quite active, some of them got up, went to the toilet or smoked tobacco and some even visited to their neighbor's house.
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But lots of people stayed in bed, often prayed because historians found countless prayer manuals from the late 15th century offered special prayers for the hours in between sleeps, and relaxing, read books, wrote, sewing was also happened. Even the great Renaissance legend Leonardo da Vinci followed a sleep schedule which called the Uberman sleep cycle, this consists 20 minute naps in every for hours, it is actually an extreme form of a polyphasic sleep schedule.
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A historian from Virginia named Roger Ekirch, published a seminal paper, drawn from 16 years of his research and His book At Day's Close: Night in Times Past, which was published four years later, revealed more than 500 evidences to a segmented sleeping pattern - in diaries, court records, medical books and literature, from Homer's Odyssey to an anthropological account of modern tribes in Nigeria, lots of references to revealing that humans used to sleep in two distinct chunks and not like today's eight hours sleeping mode.
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