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The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from Expression of Emotion in Man and Animals by Charles Darwin: When a person is much ashamed or very shy, and blushes intensely,
his heart beats rapidly and his breathing is disturbed.
This can hardly fail to affect the circulation of the blood
within the brain, and perhaps the mental powers.
It seems however doubtful, judging from the still more powerful
influence of anger and fear on the circulation, whether we can
thus satisfactorily account for the confused state of mind
in persons whilst blushing intensely.
The true explanation apparently lies in the intimate
sympathy which exists between the capillary circulation
of the surface of the head and face, and that of the brain.
 Expression of Emotion in Man and Animals |