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| Introduction |
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| Health is considered to be the state of perfect functioning of body and mind, unhindered by diseases. Disease is the malfunctioning of the organism or part of it due to infection, inherent weakness or environmental stress, that upsets the normal physiological functioning of the organism. |
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| Diseases are of two types |
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Communicable Diseases (Infectious) |
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Non-Communicable Diseases (Non-infectious) |
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