Document Detail

The precise human bioclock, possibly imported.
MedLine Citation:
PMID:  12027515     Owner:  NLM     Status:  MEDLINE    
Contrary to what has long been suggested, the biological clock is not a poor timekeeper. In fact, it has been working in precision for millions of years as a genetically set clock, independent of environmental periodicity. However, as the Earth's rotation has gradually slowed, this internal clock has gone through a relative phase shift. Extrapolating of changes backwards through time shows that the clock was set when mammals first appeared on the planet. Interestingly, primates are the only beings that have a free-running cycle longer than 24 hours. This bioclock may be set by lunar entrainment, or may be set extraterrestrially?
Z A Keskil; S Keskil
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Medical hypotheses     Volume:  58     ISSN:  0306-9877     ISO Abbreviation:  Med. Hypotheses     Publication Date:  2002 Apr 
Date Detail:
Created Date:  2002-05-24     Completed Date:  2003-01-30     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7505668     Medline TA:  Med Hypotheses     Country:  Scotland    
Other Details:
Languages:  eng     Pagination:  257-60     Citation Subset:  IM    
Copyright Information:
Copyright 2002, Elsevier Science Ltd. All rights reserved.
Department of Pharmacology, Kirikkale University Medical School, Kirikkale, Turkey.
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MeSH Terms
Biological Clocks*
Circadian Rhythm*
Earth (Planet)
Mammals / physiology
Models, Biological*
Primates / physiology
Species Specificity
Suprachiasmatic Nucleus / physiology

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