Brushing a patients hair and teeth
The Health Triangle Each side of your triangle is equally important to good health. By working to keep the sides balanced, you will be on your way to becoming a healthy person. Wellness is an overall state of well-being. It involves doing you best in all three sides of the health triangle.
The theory of fluid intelligence is based on the distinction between the fluid and crystal intelligences. The crystal intelligence is based on the knowledge that one has already and the the fluid intelligence is the intelligence to respond to future and unpredictable challenges.
I think that this distinction is very fitting and that the fluid intelligence was probably the one that drove human evolution; and perhaps is the more relevant of the intelligences.
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