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The body, as a reflection of natural forces, contained four elemental properties expressed to the Greeks as the four humors. The humors represented fire, air, earth, and water through the properties of hot, cold, dry, and moist, respectively. [3] Health in the human body relied on keeping these humors in balance within each person.
More recently, evolutionary medicine has identified many medical symptoms such as fever, inflammation, sickness behavior, and morning sickness as evolved adaptations that function as darwinian medicatrix naturae due to their selection as means to protect, heal, or restore the injured, infected or physiologically disrupted body.
He sometimes employed experiments to further his research, at one time repeatedly weighing a caged bird and noting its weight loss between feeding times. Following his teacher's researches into pneumatics, he claimed that the human system of blood vessels was controlled by vacuums, drawing blood across the body. In Erasistratus' physiology, air ...
The human being, explains the author, contains a blend of many humors. When the humors are balanced or properly mixed the human being is healthy, but when they are unbalanced or improperly mixed and one is more concentrated than the other, pain and disease is the result (14.4-6). [9]
A seminal work of traditional Chinese medicine was the Huangdi neijing (Yellow Emperor's Inner Canon) compiled between the 3rd and 2nd centuries BC (i.e. originating in the Warring States period), which viewed the human body, its organs and tissues through the lens of the metaphysical five phases and yin and yang, and stated a belief in two ...
The idea of humors in the human body reflected the four terrestrial elements: air, fire, earth, and water. The human body is composed of four essential substances (humors): yellow bile (fire), black bile (earth), blood (air), and phlegm (water). These humors have to be in equilibrium for our body to be in good health.
Plato believed that the body and the soul were separate entities, rivaling the Stoics. [68] Plato proclaimed that the soul is immortal, so it must exist before one is born, beyond the human body. [68] This influenced Galen's thinking that the soul had to be acquired because the soul does not always reside within the human body.
Maya medicine concerns health and medicine among the ancient Maya civilization.It was a complex blend of mind, body, religion, ritual and science.Important to all, medicine was practiced only by a select few, who generally inherited their positions and received extensive education.