Excellent expression, I think that the tree also needs evaporation and frequent refreshment with the help of winds, rains, colds, otherwise it will easily fade and wilt. Similarly, the human body needs strong movements, activities and serious exercises. Under health, one can not understand only the external welfare of the body, but one must understand in general the natural harmonious development of the organism and the correct fulfillment of all its dispatches. Thank you @greatpath