Classification of Diseases & Health — NEET Biology
🔥 Predicted for NEET 2027When the functioning of one or more organs or systems of the body is adversely affected, characterised by appearance of various signs and symptoms, we say that we are not healthy, i.e., we have a disease. Diseases can be broadly grouped into infectious and non-infectious. Diseases which are easily transmitted from one person to another, are called infectious diseases. Infectious diseases are very common and every one of us suffers from these at sometime or other. Some of the infectious diseases like AIDS are fatal. Among non-infectious diseases, cancer is the major cause of death. Drug and alcohol abuse also affect our health adversely.
Adjacent to a frequently-asked paragraph in the same chapter.
Assertion (A): Health is influenced not only by physical fitness but also by socio-cultural and economic factors. Reason (R): Poverty and lack of education can increase vulnerability to both infectious diseases and drug abuse in adolescents.
View solution & NCERT explanation
Correct answer: A — Both A and R are true and R is correct explanation
Both the assertion and reason are true because health is determined by more than just the physical state of the body—it is shaped by social environment, cultural practices, and economic conditions. Poverty, poor sanitation, and limited access to resources directly increase the risk of infectious diseases, while lack of education and awareness makes adolescents more susceptible to risky behaviours like drug abuse. Since the reason clearly illustrates how socio-economic factors influence health, it correctly explains the assertion. Therefore, option (a) is correct.
What does NCERT say about When functioning one or?
Has this concept appeared in NEET?
Which chapter is this from?
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
88/90MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.