A chronic condition is a human health condition or disease that is persistent or otherwise long-lasting in its effects or a disease that comes with time.
A disease is a particular abnormal condition, a disorder of a structure or function, that affects part or all of an organism.
Health is the level of functional and metabolic efficiency of a living organism.
The term chronic is often applied when the course of the disease lasts for more than three months.
Common chronic diseases include arthritis, asthma, cancer, COPD, diabetes and viral diseases such as hepatitis C and HIV/AIDS.
Human immunodeficiency virus infection and acquired immune deficiency syndrome is a spectrum of conditions caused by infection with the human immunodeficiency virus.
Diabetes mellitus, commonly referred to as diabetes, is a group of metabolic diseases in which there are high blood sugar levels over a prolonged period.
A viral disease occurs when an organism's body is invaded by pathogenic viruses, and infectious virus particles attach to and enter susceptible cells.
In medicine, the opposite of chronic is acute.
Medicine is the science and practice of the diagnosis, treatment, and prevention of disease.
A chronic course is further distinguished from a recurrent course; recurrent diseases relapse repeatedly, with periods of remission in between.
The non-communicable diseases are also usually lasting medical conditions but are separated by their non-infectious causes.
In contrast, some chronic diseases, such as HIV/AIDS, are caused by transmissible infections.
In the United States 25% of adults have at least two chronic conditions.
Chronic diseases constitute a major cause of mortality, with the World Health Organization attributing 38 million deaths a year to non-communicable diseases.
The World Health Organization is a specialized agency of the United Nations that is concerned with international public health.