It was the American physiologist Walter Cannon who in 1932 coined the term homeostasis from two Greek words meaning to remain same based on the physiological equilibrium characteristics of the human body.
Homeostasis is the body’s ability to regulate its internal environment to remain stable and functioning under changes taking place in the external environment. The liver, kidneys and the brain are the main participants of this function. The liver takes care of toxic substances by metabolizing them and maintaining carbohydrate metabolism. The kidneys carry out the regulation of blood water levels, maintain salt and iron levels in the blood, and regulate blood ph levels and discharge urea and other wastes. If the body is unable to maintain homeostasis, this will lead to disease and also death.
Thermoregulation is one aspect of homeostasis. Human body is able to withstand extreme climatic changes from sever winter to hot and humid summer conditions all due to the self regulation of body temperature that is taking place. The human body is able to adapt itself successfully in all such inhospitable conditions thanks to its thermoregulation characteristics.
A deficient diet can be a due to a combination of several factors such as a lack of knowledge of the relation between diet and health, low food production, restricted purchasing power, inadequate preservation and distribution of foods and poor food habits. But the end result is malnutrition. The growth of children below 6 years of age was below desirable standards among lower income groups in United States. Incidence of iron deficiency anemia was observed in young children and women during their productive years. Due to the physiological response from the kidney, the malnutrition is known to cause kidney related diseases.
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