List any three reasons why you would think that you are sick and ought to see a doctor. If only one of these symptoms were present, would you still go to the doctor ? Why or why not ?
When there is a disease, either the functioning or the appearance of one or more systems of the body will change for the worse. These changes give rise to symptoms and signs of disease. Symptoms of disease indicate that a person is not well. These symptoms can be in the form of headache, cough, loose motions or wound with pus. These symptoms indicate that there-may be a disease but they do not indicate what the disease is. Therefore, even if you have any of these symptoms, it is advisable to go to the doctor because only he can diagnose about any signs of a disease on the basis of these symptoms. These signs will give a little more definite indication of the presence of a particular disease. But if there is only one symptom of headache, then there is no need of visiting a doctor because it could be due to Tiredness or Stress.
Give two examples for each of the following :
(a) Acute diseases
(b) Chronic diseases
(c) Infectious diseases
(d) Non-infectious diseases.
List any three reasons why you would think that you are sick and ought to see a doctor. If only one of these symptoms were present, would you still go to the doctor ? Why or why not ?
Differentiate between communicable and non-communicable diseases. Give one example of each.
(i) Why a person suffering from AIDS cannot fight even small infections ?
(ii) In a slum area, many people are suffering from malaria. Mention any two unhygienic conditions that must be prevailing in that locality.
(iii) Why female Anopheles mosquito feeds on human blood ? [SAII – 2014]
Which amongst the two diseases : acute or chronic has adverse effect on the health of a person? Explain giving a suitable example.
Majority of children in many parts of India are already immune to Hepatitis A by the time they are five years old. Why ?
Classify infectious agents into different categories and also mention the diseases caused by them.
What do signs and symptoms indicate if a person is suffering from any disease ? [SAII -2014]
Becoming exposed to or infected with an infectious microbe (toes not necessarily mean developing noticeable disease. Explain.
(i) Which bacterium causes peptic ulcers ?
(ii) Who discovered the above pathogen for the first time ?
List any four essential factors that must be taken icare of by an individual for keeping good health.
Why do some children fall ill more frequently than others living in the same locality ?
Under which of the following conditions is a person most likely to fall sick ?
(a) When she is recovering from malaria.
(b) When she has recovered from malaria and is taking care of someone suffering from
chickenpox.
(c) When she is on a four-day fast after recovering from malaria and is taking care of someone suffering from chickenpox. Why ?
State giving reasons whether the following statements are correct or not:
(i) What is an epidemic disease ?
(ii) Which organ is affected if a person is suffering from jaundice ?