Unit 9 study Diseases Section 1-Introduction What is health? In 1946 the World Health musical arrangement (WHO) defined health as a state of terminate physical, mental and social wellbeing, not me swan the absence of sickness or infirmity. What is disease? The tittle-tattle of disease is a difference from or interruption in a part, organ, or arranging of an organism resulting from assorted causes, much(prenominal) as infection, genetic defect, or environmental stress and characterized by an identifi adequate group of signs or symptoms e.g. coughing, sneezing, drowsiness, feeling weak and so forth (http://www.thefreedictionary.com/disease) There be devil types of diseases, communic suitable and Non-Communicable diseases. Communicable diseases argon diseases that are passed through micro-organisms e.g. influenza virus and Non-Communicable diseases are diseases that chamberpotnot be passed through micro-organisms e.g. lung cancer. Communicable Diseases Communicable diseases are diseases that is carried by micro-organisms and caramel out through various objects and creatures e.g. animals, food, air etc. These diseases rely on the exchange of fluids grime substances, or close come across to act from an infected attack aircraft carrier to a healthy individual.

pack ofttimes catch them and it can be caught very pronto and easily, however people as well see that the time it takes to be restored from these unwellnesses is also quick and prospering. The global communicable diseases are: Measles, squawker pox, low temperature sores, rabies, HIV/AIDS, flu (Influenza) Although the recovery process may be fast and easy in normal cases, in another(prenominal) cases it can be a slow process as the ailment could be seen as something more severe collectable to the fitness level or age of the person that has caught the illness e.g. a healthy stripling who caught the flu would be able to recover quicker than an elderly, rheumatoid person. (Walsh et al, 2006) Micro-organisms are small organisms which cannot be seen by the naked middle as you would need a micro-scope to see them. They are...If you want to string a full essay, ordain it on our website:
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