Hemispheres
Scientists opened that emotions and thoughts are connected with activity of this or that hemisphere and work of cerebral hemispheres alternates as the person tests positive emotions.
Hemispheres gradually get tired as any bodies in a condition of loading, and rest is necessary for them.
At increase in pleasures, at increase in positive experiences, the cerebral hemisphere which is responsible for good positive emotions, for delight and pleasure, for feeling of rise and enthusiasm, can be tired and inevitably is tired, and is not effective any more even if we will increase prisutstkvy external factors which do us happier.
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