As it is well known, 75% of the human body is water, and 25% is water soluble solid materials. Moreover, 85% of brain tissue is water. According to recent medical studies, the solid materials should therefore be observed, researched and analysed, because the water is just carrying them, like a subservient part. But if something has a 75% majority, it is the boss. Therefore, the water is not just a mere dissolver, in fact it controls all the activities of the body.