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jan 1, 400 BC - Aristotle

Description:

Believed that the digestion of food created warm vapours that rise from the stomach and collect in the head, where they cool and condense, flowing down to the heart (which he believed to be the body’s sensory centre), which then caused sleep as it cooled.

Added to timeline:

Sleep Medicine

ByPardeep Masuta
8 Nov 2017
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Date:

jan 1, 400 BC
Now
~ 2428 years ago

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