Disease is a condition that impairs the proper functioning of the body or its parts. A disease can be defined as: Any deviation from normal functioning or state of complete physical and mental well being.
Types of diseases:
The human diseases are broadly classified into following four categories:
- Acute diseases
- Chronic diseases
- Congenital diseases
- Acquired diseases
Acute diseases:
Diseases such as influenza are described as acute because their effects are come on suddenly and affect the body quickly, e.g., common cold.
Chronic diseases:
Other diseases are more long-term, with the symptoms lasting for months or years. Such
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