It is very surprising that as I watch someone yawning on the telly that I feel like yawning as well. The Human body is one machine that works on so many levels, the conscious and the sub-conscious. I think that since pre historic times when Humans went about in tribes, they must have all eaten together and slept together.As such when one member of the tribe starts yawning after a heavy meal, the whole tribe must have taken it as a signal for 'lights out'.
The Human body must have adapted this as a signal for sleeping and this knowledge that it is based on is what scientists call 'hereditary knowledge'. So today when we see someone yawning, we have this tendency to start yawning ourselves and soon it is all lights out for us!
yawning,
humans,
mind,
conscious,
subconscious,
Monday, November 12, 2007
Is yawning contagious?
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