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Diseases are essentially of two types, communicable or non-communicable diseases. In order to stay free from diseases, one should eat healthy food and stay fit. Communicable diseases can be prevented by taking appropriate vaccinations, keeping oneself and his surroundings clean, avoid eating unhealthy or contaminated food. In addition to these, there are also certain genetic reasons behind the appearance of some non-communicable diseases, these cannot be controlled but by following a healthy lifestyle, their occurence can be postponed.

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