Home   |   Contact   |   Help

Get Our Newsletter
Sign up for our free newsletter to get training tips and stay up to date on Catalyst Athletics, and get a FREE issue of the Performance Menu journal.

Go Back   Catalyst Athletics Forums > Community > Community & Events

Reply
 
Thread Tools Display Modes
Old 12-24-2006, 09:41 AM   #1
Mike ODonnell
Senior Member
 
Mike ODonnell's Avatar
 
Join Date: Nov 2006
Posts: 3,596
Default Segmented sleep?

Thought this was interesting: (from a t-nation article of all places)

"In 2005, historian A. Roger Ekirch published a book named At Day's Close: Night in Times Past. In this book, Ekirch reveals what sleep looked like in pre-industrial times. Before there was electricity, before there were gaslights, people typically slept in two bouts they called first sleep and second sleep.

Within an hour or two after sunset, people would go to sleep, only to awaken about four hours later. Did they lie there and worry about taxes and their jobs and curse their circumstances? No, they got up and did household chores or visited with family or friends. They even used this time for sex.

Approximately two hours later, they'd go back to bed for another four hours or so.

Mind you, this was not social convention but innate physiology. It makes perfect sense, too, when you look at the rest of the animal kingdom. Almost all mammals that are active during the day, like chimps, giraffes, and yes by God, chipmunks, sleep in two distinct periods.

And when modern humans are freed from the time constraints imposed by modern life and modern lighting? They revert. Experiments where men are exposed to natural and artificial light for 10 hours a day and then confined to a dark room for 14 hours (similar to a winter's day and night) show that modern humans go back to segmented sleep. Likewise, anthropologists have observed similar segmented sleep patterns in certain modern African tribes."

Thoughts comments? I have to say I do find it interesting. Of course this assumes I go to bed at 7pm....which will never happen.
Mike ODonnell is offline   Reply With Quote
Old 12-27-2006, 03:53 PM   #2
Jeremy Jones
Senior Member
 
Jeremy Jones's Avatar
 
Join Date: Oct 2006
Posts: 181
Default

If I get to bed at a decent hour (8-930) I will usually wake up again around midnight, and feel very well rested and alert. Usually, I try to go right back to sleep (I am already sleep deficient).

I attributed this to my usual habit of taking naps during the day, and to the adjustment of only getting 4 - 6 hrs sleep on a regular basis (terrible I know). Maybe there is more to this than I originally thought.
__________________
-Jeremy Jones
www.diablocrossfit.com
Jeremy Jones is offline   Reply With Quote
Old 12-27-2006, 04:25 PM   #3
Scott Kustes
Senior Member
 
Scott Kustes's Avatar
 
Join Date: Oct 2006
Location: Louisville, KY
Posts: 1,048
Default

I can relate...If I get to bed by 9ish, I rarely sleep all the way through to 6am when I get up for work unless I'm sleep deprived. As long as I'm getting 8-9/night consistently, it is rare for me to make it past 3am without waking up. I promptly go back to sleep though once I look at the clock and thank my lucky stars that I still have 3+ hours.
__________________
Scott

Fitness Spotlight
Scott Kustes is offline   Reply With Quote
Old 12-28-2006, 07:50 AM   #4
Yael Grauer
Senior Member
 
Yael Grauer's Avatar
 
Join Date: Oct 2006
Location: Minneapolis, MN
Posts: 1,590
Default

That's interesting. I do know that some people would sleep through the night back then, without waking up... and the sleep studies indicate people got an average 9 hours throughout the year... more in the winter obviously.
__________________
http://yaelwrites.com
Yael Grauer is offline   Reply With Quote
Old 12-28-2006, 09:38 AM   #5
Mike ODonnell
Senior Member
 
Mike ODonnell's Avatar
 
Join Date: Nov 2006
Posts: 3,596
Default

I'm glad I am not the only one who found this pretty realistic....as if I go to be early (that's 9-10pm for me) then I am usually always up at 3am...and here I thought I was suffering major sleep apnea...

In thinking about segmented sleep....maybe we were meant to sleep early....for 4-6 hours...just when our body is about to go catabolic and peak with cortisol levels, awak...refeed...get cortisol levels back down.....go back to sleep...and then reawake once again 4 hours later before cortisol levels get too high again. Is this a built in mechanism, and if so...that mean that sleeping 8+ hours in a row is actually more harmfull in the long run? (I remember reading about how most all heart attacks are early in the morning...right when cortisol is at it's peak)
Mike ODonnell is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -7. The time now is 03:50 PM.

Powered by vBulletin Version 3.6.2
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Subscribe to our Newsletter


Receive emails with training tips, news updates, events info, sale notifications and more.
ASK GREG

Submit your question to be answered by Greg Everett in the Performance Menu or on the website

Submit Your Question
WEIGHTLIFTING TEAM

Catalyst Athletics is a USA Weightlifting team of competitive Olympic-style weightlifters with multiple national team medals.

Read More
Olympic Weightlifting Book
Catalyst Athletics
Contact Us
About
Help
Newsletter
Products & Services
Gym
Store
Seminars
Weightlifting Team
Performance Menu
Magazine Home
Subscriber Login
Issues
Articles
Workouts
About the Program
Workout Archives
Exercise Demos
Text Only
Instructional Content
Exercise Demos
Video Gallery
Free Articles
Free Recipes
Resources
Recommended Books & DVDs
Olympic Weightlifting Guide
Discussion Forum
Weight Conversion Calculator