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View Full Version : The 8 hour sleep conspiracy, it's natural to wake up during the night.



joboo
15th February 2013, 04:49 AM
http://www.dailymail.co.uk/health/article-2211431/Insomnia-Stop-losing-sleep-insomnia--natural-wake-night.html

"These are the controversial suggestions to emerge from two newly published books that challenge our widely accepted rules about what constitutes ‘healthy sleep’.

Their authors argue that the ‘eight hours uninterrupted’ rule is, in fact, a myth that was created to suit factory owners in the Industrial Revolution. Instead, our natural state is to have segmented periods of sleep that are nowadays thought unhealthy.

However, the ‘tyranny’ of the eight-hours message has meant that the many people who don’t conform to this end up suffering ‘sleep anxiety’, as David Randall argues in his book, In Dreamland: Adventures In The Strange Science Of Sleep.

http://i.imgur.com/sVOVtY1.jpg

‘We know we should be getting a good night’s rest, but imagine we are doing something wrong if we awaken in the middle of the night,’ he argues.

‘Related worries turn many of us into insomniacs and incite many to reach for sleeping pills or sleep aids.’ "

Before this electrically illuminated age, our ancestors slept in two distinct chunks each night,’ he says.

‘The so-called first sleep took place not long after the sun went down and lasted until a little after midnight.

'A person would then wake up for an hour or so before heading back to the so-called second sleep.’

This forgotten way of sleeping was rediscovered by Professor A. Roger Ekirch, a historian at Virginia Polytechnic Institute and State University.

There was also an English doctor who had written that the time between the ‘first sleep’ and ‘second sleep’ was the best time for study and reflection. "

"Research suggests this wakeful cycle may indeed be our natural sleeping pattern when we are away from light bulbs, screens and other electronic distractions.

A study by the U.S. National Institute of Mental Health found that when people are deprived of artificial light they go to bed earlier, then wake up a little after midnight and lie awake for a couple of hours.

Once the study volunteers learned to stop worrying about their broken sleep, they started to enjoy their time in the middle of the night as a chance to relax — to think and reflect on their day just done, and the day to come, explained Thomas Wehr, a psychiatrist and research scientist who led the research.

Anthropologists have now observed a similar pattern in some contemporary African tribes.

The Tiv people of central Nigeria even use the same terms — first sleep and second sleep.

Blood tests conducted by Wehr suggest the waking time between first and second sleep may be highly relaxing.

During this period, his volunteers brains’ were found to have raised levels of prolactin, a hormone that helps reduce stress and is responsible for the relaxed feeling after an orgasm."

http://www.worldmag.com/media/images/content/576_576_/book3_5.png

brosil
15th February 2013, 06:22 AM
And then there's a study of folks deprived of normal time keeping , kept inside with no reference to night and day. They fell into a 14 hour sleep cycle and reported feeling highly energized during their wake cycle. It's been over 21 years since I've woken up rested and ready for the day. Maybe after I retire, I can learn to sleep again.

horseshoe3
15th February 2013, 07:11 AM
Was that 14 hours of sleep followed by XX hours of being awake, or is it a 14 hour full cycle day?

Dogman
15th February 2013, 07:28 AM
CHRONOBIOLOGY http://en.wikipedia.org/wiki/Chronobiology


One of several study's.

[Snip]

One of the most spectacular observations during these time-isolation experiments in caves, laboratories, and other settings is the way that subjects’ sleep-wake cycles shift relative to the actual alternation of day and night in the outside world. But as soon as the experiments are over, the subjects take only a few days to resynchronize their cycles to these external time cues. This shift and the return to normal are shown in the diagram below, where each line represents one day in a time-isolation experiment that lasted a month and a half. The solid part of each line represents the period when the subject was asleep, the dotted part represents the period when the subject was awake, and the triangle marks the time when the subject’s body temperature was lowest.

For the first 9 days of this experiment, the subject was exposed to the natural variations in ambient light and noises that characterize day and night. The first 9 lines of the diagram thus represent the control records for this experiment. For the next 25 days, the subject was cut off from all such cues as to the time of day and was left to operate according to his own endogenous rhythm. He continued to display a sleep-wake cycle, but it lengthened to about 25 hours. (After several weeks of such isolation, these cycles may get even longer—30 to 36 hours. For instance, a subject may stay awake for 20 hours, then sleep for 12, and feel completely fine.)



[Snip]

Chart at link.

http://thebrain.mcgill.ca/flash/a/a_11/a_11_p/a_11_p_hor/a_11_p_hor.html

Ponce
15th February 2013, 07:51 AM
Well, I then have about a five cycle sleep because that's how many time I get up to take a piss, lucky for me I usually go right to sleep

First post of the day..........good morning to one and all.

V