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Health: The Ultimate Treasure

🎓 Class 8📖 Curiosity📖 10 notes🧠 15 Q&A⏱️ ~15 min

Health: The Ultimate TreasureStudy Notes

NCERT-aligned · 10 notes · 3 shown free

Health: Is It More Than Not Falling Sick?

Explanation

Health: Is It More Than Not Falling Sick?

This section introduces the concept of health beyond the mere absence of disease. It begins by prompting students to reflect on news clippings about health in India, encouraging them to think about what it means to be truly healthy. Health is defined by the World Health Organization (WHO) as a state of complete physical, mental, and social well-being, not merely the absence of disease or infirmity. This holistic definition emphasizes that a healthy person is not only free from illness but also feels good physically, maintains a positive mental state, and enjoys strong social relationships. The section includes a real-life activity (Activity 3.1) about a Grade 8 student who moved to a new city and experienced loneliness, leading to physical and mental health problems such as headaches, weight loss, and sleep disturbances. This example illustrates how mental and social factors can directly affect physical health. The section also introduces the ancient Indian system of Ayurveda, which teaches that health is a balance of body, mind, and environment. Ayurveda recommends following daily routines (dinacharya) and seasonal routines (ritucharya), eating fresh and wholesome food suited to one's body constitution (prakriti), regular exercise, cleanliness, restful sleep, and maintaining a calm mind through practices like yoga and meditation. These practices support overall well-being and help maintain the balance necessary for good health. The section concludes by highlighting that a healthy person can perform tasks efficiently, cope with challenges, and adjust well socially.

  • Health is a state of complete physical, mental, and social well-being, not just absence of disease.
  • Mental and social factors like loneliness and stress can affect physical health.
  • Ayurveda emphasizes balance among body, mind, and surroundings for true health.
  • Daily and seasonal routines, wholesome diet, exercise, cleanliness, and restful sleep promote health.
  • A healthy person can perform tasks efficiently and adjust well socially.
  • Positive mindset and strong relationships are important aspects of health.
  • 📌 Health: Complete physical, mental, and social well-being, not merely absence of disease (WHO definition).
  • 📌 Dinacharya: Daily routine recommended in Ayurveda for maintaining health.
  • 📌 Ritucharya: Seasonal routine in Ayurveda to maintain balance with changing environment.

How Can We Stay Healthy?

Explanation

How Can We Stay Healthy?

This section focuses on practical ways to maintain good health by adopting a healthy lifestyle. It emphasizes that health depends on multiple factors including diet, hygiene, physical activity, sleep, social interactions, and mental well-being. The section begins by listing essential habits such as eating nutritious food, maintaining personal hygiene, staying in clean surroundings, exercising regularly, getting adequate sleep, managing stress, and avoiding harmful substances like tobacco and alcohol. It encourages students to reflect on their own habits through Activity 3.2, where they list good habits encouraged by elders and identify unhealthy habits they might have. The section highlights the importance of balanced diet rich in fruits, vegetables, and whole grains, and warns against processed, fatty, and sugary foods. Physical activity is stressed as vital for keeping the body fit and preventing lifestyle diseases. Limiting screen time and spending time outdoors in nature is recommended to promote mental and physical health. The section also introduces yoga and pranayama (breathing exercises) as beneficial practices for maintaining calmness and well-being. It strongly advises saying 'No' to smoking, alcohol, and addictive drugs, which harm health. The section concludes by linking lifestyle choices to overall health and well-being, encouraging students to adopt positive habits for a healthy life.

  • Eat a balanced diet with fruits, vegetables, and whole grains.
  • Maintain personal hygiene and live in clean surroundings.
  • Exercise regularly and stay physically active.
  • Get sufficient sleep to allow body and mind to rest.
  • Manage stress through relaxation, meditation, or yoga.
  • Avoid harmful habits like smoking, alcohol, and excessive screen time.
  • 📌 Balanced diet: A diet containing adequate amounts of all necessary nutrients.
  • 📌 Pranayama: Breathing exercises that help calm the mind and improve health.
  • 📌 Personal hygiene: Practices to keep the body clean and prevent infections.

Keep the environment clean

Explanation

Keep the environment clean

This section explains the critical role of a clean environment in maintaining health. It begins with Activity 3.3, where students compare two playgrounds—one clean and well-maintained, and the other polluted and unhygienic. The clean playground is pr

Practice QuestionsHealth: The Ultimate Treasure

Includes NCERT exercise questions with answers

Q1.Look at Fig. 3.3a and Fig. 3.3b. Which playground would you like to play in, and why?

Answer:

Most would prefer to play in the playground shown in Fig. 3.3a because it is clean, well-maintained, and looks beautiful. The playground in Fig. 3.3b is polluted, dirty, unhygienic, and full of flies and mosquitoes, which can cause people living in such areas to fall sick more often. Therefore, a clean and healthy environment is better for playing and overall health.

Explanation:

The question asks for a preference and reasoning based on the conditions shown in the two figures. Fig. 3.3a represents a clean and healthy playground, while Fig. 3.3b shows a polluted and unhygienic playground. Clean surroundings reduce the risk of diseases and promote well-being.

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Q2.Which of the following best defines health according to the chapter?
A.A) Absence of any disease or illness
B.B) Complete state of physical, mental, and social well-being
C.C) Ability to perform physical activities without fatigue
D.D) Having a balanced diet and regular exercise

Answer:

Complete state of physical, mental, and social well-being

Explanation:

Health is not just the absence of disease but a complete state of physical, mental, and social well-being, meaning a person feels good physically, mentally, and socially.

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Q3.Which of the following is NOT a symptom of disease?
A.A) Fever
B.B) Pain
C.C) Swelling
D.D) High blood pressure

Answer:

High blood pressure

Explanation:

Symptoms are felt by the patient, like fever and pain, whereas signs are measurable indicators like high blood pressure. So, high blood pressure is a sign, not a symptom.

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Q4.Non-communicable diseases differ from infectious diseases because they are usually caused by:
A.A) Pathogens like bacteria and viruses
B.B) Lifestyle and environmental factors
C.C) Direct contact with infected persons
D.D) Contaminated water and food

Answer:

Lifestyle and environmental factors

Explanation:

Non-communicable diseases arise mainly due to lifestyle choices like poor diet, lack of exercise, and environmental factors, unlike infectious diseases caused by pathogens.

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Q5.Which of the following diseases is caused by a pathogen and can spread from person to person?
A.A) Diabetes
B.B) Asthma
C.C) Chickenpox
D.D) Hypertension

Answer:

Chickenpox

Explanation:

Chickenpox is an infectious disease caused by the varicella virus and can spread through close contact, unlike diabetes or asthma which are non-communicable.

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Q6.Vaccines help in preventing diseases by:
A.A) Killing all pathogens in the body
B.B) Training the immune system to recognize pathogens
C.C) Providing antibiotics to fight infections
D.D) Removing toxins from the blood

Answer:

Training the immune system to recognize pathogens

Explanation:

Vaccines introduce a harmless part of the pathogen to the body, which trains the immune system to recognize and fight the real pathogen if encountered later.

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Q7.During a flu outbreak in school, which immediate action is most effective in preventing the spread?
A.A) Sharing food and drinks among students
B.B) Encouraging sick students to stay home
C.C) Avoiding hand washing to build immunity
D.D) Ignoring symptoms and attending classes

Answer:

Encouraging sick students to stay home

Explanation:

Keeping sick students at home reduces the chance of spreading the flu virus to others, which is a key preventive measure during outbreaks.

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Q8.Which of the following diseases is commonly spread through contaminated water?
A.A) Typhoid
B.B) Chickenpox
C.C) Asthma
D.D) Diabetes

Answer:

Typhoid

Explanation:

Typhoid is caused by the bacterium Salmonella typhi and spreads through contaminated water or food, unlike chickenpox which spreads through air droplets.

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