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Introduction to Disease

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The state of feeling uncomfortable and uneasy due to disorder in the body which makes it difficult to do any work is called disease. This note has a short introduction on disease and its type.
Introduction to Disease

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Diseases

The state of feeling uncomfortable and uneasy due to disorder in the body which makes it difficult to do any work is called disease.

Types of disease

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a. Communicable disease:

Those diseases that are mainly caused by virus and bacteria and can be transferred from an unhealthy person to healthy people are called communicable diseases. They are caused by contact with the sick person through the medium of clothes, food, insect, injections, etc.

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b. Non-communicable diseases:

The diseases that are mainly caused due to an unhealthy lifestyle, lack of exercise, unhealthy food, etc. but are not transferred from one person to another are called non-communicable diseases.

Differences between communicable and non-communicable diseases

Communicable Non-communicable
1. The main causes of this disease are parasites and viruses. 1.The main causes of the diseases are the unhealthy lifestyle, alcohol and tobacco use, lack of exercise, etc.
2. It is transferred from a sick person to a healthy person. 2. It is not transferred from a sick person to a healthy person but it depends on the lifestyle of people, obesity and mental health.
3. Most of the communicable diseases are of acute type (means that can be cured.) But some diseases like tuberculosis, HIV, Hepatitis B are chronic (means that cannot be cured but can be controlled) 3. Most of the non-communicable diseases are chronic.
Things to remember
  • The state of feeling uncomfortable and uneasy due to disorder in the body which makes it difficult to do any work is called disease.
  • There are two types of disease. They are communicable disease and non-communicable disease.
  • Most of the communicable diseases are of an acute type and some diseases like tuberculosis, HIV, Hepatitis B etc  are chronic. But most of the non-communicable diseases are chronic.
  • It includes every relationship which established among the people.
  • There can be more than one community in a society. Community smaller than society.
  • It is a network of social relationships which cannot see or touched.
  • common interests and common objectives are not necessary for society.
Videos for Introduction to Disease
Disease! Crash Course
Health - Non-Communicable Diseases
Health: Communicable Diseases
What are Germs ? - Major Types , Diseases, Infections ,Animation Video
WHO: Global Noncommunicable Disease Network
Questions and Answers

The term ‘disease' is derived from two words ‘dis' meaning lack and ‘ease' meaning comfort. It is a condition of discomfort. The state of feeling uncomfortable and uneasy due to disorder in the body which makes it difficult to do any work is called disease.

There are two types of disease. They are: communicable disease and non-communicable disease.

Differences between communicable and non-communicable diseases

Communicable diseases Non-communicable diseases
1. The main causes of these diseases are parasites and viruses. 1. The main causes of these diseases are unhealthy lifestyle, alcohol and tobacco use, lack of exercise, etc.
2. It is transferred from a sick person to a healthy person. 2. It is not transferred from a sick person to a healthy person but it depends upon the lifestyle of people, obesity and mental health.

The main causes of disease are germs found in the environment, polluted air, water, radiation, unhealthy life style, disturbance inside body,etc.

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