# My Medical Theory: Circasepian Rhythms.

**URL:** <https://boards.straightdope.com/t/my-medical-theory-circasepian-rhythms/492914>\
**Category:** Miscellaneous and Personal Stuff I Must Share\
**Created:** [April 13, 2009, 3:44am UTC](https://boards.straightdope.com/t/my-medical-theory-circasepian-rhythms/492914 "2009-04-13T03:44:24Z")\
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**Author:** ![Jim\_B](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/jim_b/32/4338_2.png) [@Jim\_B](https://boards.straightdope.com/u/Jim_B)\
**Post date:** [April 13, 2009, 3:44am UTC](https://boards.straightdope.com/t/my-medical-theory-circasepian-rhythms/492914/1 "2009-04-13T03:44:24Z")

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Ever since I was a child, I noticed there were certain rhythms that were not part of what could be called a “natural” cycle, like the day or the year. I noticed, for example, early on that when it was Sunday or Saturday, it literally “felt like” that particular day.

Now the days of the week are obviously man-made. The 7-day cycle is in no way derived from nature. So why does it “feel” like a Sunday or Saturday? And why (I also noticed) does some day suddenly _feel_ like a Sunday or Saturday when there is an unusual interruption in your routine, like when you do something you normally do on these days. Or like when you have an unexpected vacation, for example. Clearly part of your body must be taking into account non-natural cycles in some way.

Anyways, a few years back I looked up “week” in my Classical Latin dictionary. And they gave the translation as _septem dies_ which simply means “7 days”. Taking the first 3 letters of this (for brevity) and adding the root from _Circadian Rhythms_ I made up the word “Circasepian Rhythms”. (BTW, I later looked up week in a _modern_ Latin dictionary and found it was a different word. But I still like _septem dies_. It contains “7 days” which is not found in nature, after all.)

I’d love to share this theory with some eminent scientist and maybe get writ up in the JAMA too, who knows. But I don’t know how to do this at this time.

Thank you all for your time and comments:)

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