Health and disease in human communities are very complex issues, with many interconnected causes. Cells are the basic units of organisms . Cells are made up of a variety of chemical substances like protein,carbohydrates,fats ,lipids etc. A cell is a dynamic place. Something or the other is always happening inside them. In our organs or tissues, there are various specialised activities going on- the heart is beating, the lungs are breathing. All these activities are interconnected. Health means a state of physical,mental and a social well-being. The environment includes the physical environment. The manifestation of the disease depends on a number of factors. One of the most factors that determine how the disease is perceived is the disease duration. On the basis of duration ,the disease may be chronic or acute.
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substances like protein,carbohydrates,fats ,lipids etc. A cell is a dynamic place. Something or the other is always happening inside them. In our organs or tissues, there are various specialised activities going on- the heart is beating, the lungs are
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