Class 7 Hindi - PUNJAB
Nahin Hona Bimar
Class 7 Science chapter 'Nahin Hona Bimar' (Why Do We Fall Ill) from the PSEB curriculum explains the fundamental concepts of health, diseases, and their prevention. Students learn the difference between being healthy and being disease-free, exploring how physical, mental, and social well-being contribute to overall health. The chapter details various types of diseases such as communicable and non-communicable, acute and chronic, along with their causes like bacteria, viruses, and lifestyle factors. It also highlights the importance of hygiene, balanced diet, vaccination, and the immune system in preventing illnesses, making it crucial for board exams.
Start Learning FreeKey Concepts
Health
Health is a state of complete physical, mental, and social well-being, and not merely the absence of disease or infirmity.
Disease
Any condition that impairs normal functioning of the body and causes discomfort or distress is known as a disease.
Communicable Diseases
Infectious diseases that spread from an infected person to a healthy person through air, water, food, or vectors like mosquitoes.
Non-Communicable Diseases
Diseases that do not spread from person to person, often caused by unhealthy lifestyles, genetics, or deficiencies.
Prevention and Immunity
Measures like vaccination, maintaining hygiene, and consuming a balanced diet help build immunity and prevent diseases.
Important Formulas
Board Exam Info
In the Punjab School Education Board (PSEB) Class 7 Science examinations, this chapter typically carries around 4 to 6 marks. Common question types include short answer questions on infectious vs non-infectious diseases, fill-in-the-blanks regarding disease prevention, and short conceptual questions on the importance of vaccination and balanced diet.
Frequently Asked Questions
What is the difference between being healthy and being disease-free?
Being disease-free simply means you do not have any specific ailment, whereas being healthy means achieving complete physical, mental, and social well-being.
How do communicable diseases spread?
Communicable diseases spread through various mediums such as infected air, contaminated water, direct contact with an infected person, or through vectors like insects.
Why are vaccinations important?
Vaccinations introduce weakened or dead germs into the body, which helps the immune system recognize and fight off future infections safely.
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