Circadian Rythm

The most punctual known record of a circadian process dates from the 4th century BC, when Androsthenes, a boat commander serving under Alexander the Great, portrayed diurnal leaf developments of the tamarind tree. The perception of a circadian or diurnal process in people is specified in Chinese medicinal messages dated to around the 13th century, incorporating the Noon and Midnight Manual and the Mnemonic Rhyme to Aid in the Selection of Acu-indicates According to the Diurnal Cycle, the Day of the Month and the Season of the Year.

Circadian Rythm

Circadian Rythm

Originally posted: November 18, 2012

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