Question

1. Define Health.

2. What give rise to signs and symptoms of disease?

3. Mention two major means by which doctors detect diseases (l

4. Differentiate acute and chronic diseases with respect to their effects on general health

5. Name 2 contributory causes of the disease.

according to class 9th chapter why do we fall ill​

Answer 1

1.The WHO defines health as a state of “complete physical, mental and social well-being and not merely the absence of disease or infirmity.2.Infection occurs when viruses, bacteria, or other microbes enter your body and begin to multiply. Disease occurs when the cells in your body are damaged as a result of infection and signs and symptoms of an illness appear.

4.Acute diseases refer to a medical condition that occurs suddenly and lasts for a shorter period of time. Chronic diseases develop slowly and last for a lifetime. Chronic diseases are sometimes fatal.

Answer 2

Answer:

1) Health means a state of physical, mental and social well-being.

2) Symptoms of disease are the signs of a disease which indicates the presence of a particular disease.