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Ancient Body Clock Discovered

The mechanism that controls the internal 24-hour clock of all forms of life from human cells to algae has been identified by scientists.

Two new studies in the journal Nature from the Universities of Cambridge and Edinburgh give insight into the circadian clock which controls patterns of daily and seasonal activity, from sleep cycles to butterfly migrations to flower opening.

One study, from the University of Cambridge’s Institute of Metabolic Science, has for the first time identified 24-hour rhythms in red blood cells. This is significant because circadian rhythms have always been assumed to be linked to DNA and gene activity, but — unlike most of the other cells in the body — red blood cells do not have DNA.

Read the original article at: Science Daily News

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