CBSE Class 9 Why do we fall ill

Refer to attached file for detailed concepts on CBSE Class 9 Why do we fall ill chapter


Significance of Health

Disease and Its causes

Infectious diseases

Principles of prevention of diseases

1.”Health” is a state of being well enough to function well physically, mentally, and socially.

2.”Disease”( disturbed ease) means being uncomfortable. One or more systems of the body will change, give rise to “Symptoms” ( Cough, loose motions, pus formation, headache, fever, breathlessness, vomiting, fits, unconsciousness, inflammation , swelling and general effects - a Doctor look for the basis of symptoms). Diseases are basically two types- Acute Disease & Chronic Disease

3. Acute Disease: The disease which lasts for only a short period of time is called Acute Disease Ex. Common Cold.

4.Chronic Disease: The disease which lasts for long period of time is called Chronic Disease Ex. Tuberculosis.

5. Causes of Diseases : Most of the diseases have many causes, rather than one single cause, like unclean water, nourishment, genetic differences, genetic abnormalities e.g. Based on the causes diseases are of two types: Non-Infectious Diseases and Infectious Diseases.

 

Refer to attached file for detailed concepts on CBSE Class 9 Why do we fall ill chapter

Vote: 
Average: 3.5 (2 votes)
X
Enter your CBSE Academics username.
Enter the password that accompanies your username.
CAPTCHA
This question is for testing whether you are a human visitor and to prevent automated spam submissions.
8 + 8 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.
Loading