பக்கம்:Physical and Health Education-6 to 10.pdf/406

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What are the ill effects of smoking? Smoking increases the risk of cancer of the lungs and lips. Smoking damages lungs, stomach, heart and circulation. Smoking costs money. It looks like little is spent. But it adds up to a lot. It affects the family food budget. What are the chief functions of food? 1. The first main function of food is to provide the materials necessary for the growth and building up of the body and also for its repair. 2. The second function of food is to provide fuel for the generation of energy in the human body. 10. 3. The third is to provide those regulating factors which keep the reaction running at the right rates, and keep the conditions inside the body within the zones of delicate adjustment which the life process requires. what is a balanced diet? Diet is a combination of different food stuffs. Food substances collect in correct proportions for a meal is called balanced diet. Write short notes on Disease? The word disease is divided into two words like dis + ease, it means uncomfort. So, we can say like this, dis ease is the state of body in which one or more of its parts fail to do their work properly. What are communical be diseases? Communicable diseases are caused and spead through air, food, water, insect bites and through physical contact. What are the chief characteristics of the communicable diseases? 1. Each communicable disease has fixed time limt during which the man remains ill. 2. It spreads from one person to another. 76