Disease

Disease is a disorder or malfunction of the mind or body, which leads to a departure from good health. That can be disorder of a specific tissue or organ due to a single cause or may have many causes which is often referred to as multi factorial including genetic abnormalities, infection by microbes or parasites, chemicals agent, ionizing radiation, behavior (diet and lifestyle habit), physical trauma, degeneration; e.g.   excessive use or aging.
Some diseases are simple and can be cure easily but on the other hand, some are fatal like HIV/AIDS, hepatitis B, etc. due to lack of adequate knowledge and awareness, today many people are suffering from different kind of diseases because of which their quality of life is being degraded day by day. To have a productive and quality of life, everyone must be alert about their health and must adopt a healthy behavior like having balanced diet, sound sleep, immunization against specific diseases, routinely health checkup and follow up, and so on.