The touch heals, comforts and relaxes. Sometimes a handshake is enough, which can replace many words. A fascinating study showed that patients who received an explanation from the doctor about taking medicine accompanied by a light touch on the arm, showed a much higher response to taking the medicine than patients who received the same explanation, but without the touch. Prisoners in solitary confinement testified that their greatest difficulty in solitary confinement was not the lack of daylight, nor the lack of conversation, but rather the lack of contact from another person. A baby often calms down just thanks to the touch of his mother or father.
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