Health is the body’s ability to perform well. Good physical health is important to be able to function properly and comfortably. Good mental health ensures we are happy and able to cope in different situations.
If there is an increase in carbon dioxide in the blood it means that the cells would increasingly take up oxygen. so then lactic acid would be produced. Also the person that has increase in carbon dioxide in blood will die. if the level of carbon dioxide in blood increases the PH decreases. when the levels of carbon dioxide increase the blood becomes more acidic.
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B. Reflecting about yourself is in your head, so it is not physical.
Nutrition to me means "what you need to live healthy". There are many factors in nutrition that you need everyday in order to be healthy. If we didn't have "Nutrition" we wouldn't have "Nutritional values", which calculate out how much we are supposed to consume.
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