When you catch a cold, your immune system quickly responds. You may get a runny nose, cough or fever. These symptoms are your body’s way of fighting off the virus. White blood cells increase to destroy the virus. Fever helps kill the virus by raising body temperature. All these changes show how yourRead more
When you catch a cold, your immune system quickly responds. You may get a runny nose, cough or fever. These symptoms are your body’s way of fighting off the virus. White blood cells increase to destroy the virus. Fever helps kill the virus by raising body temperature. All these changes show how your body defends itself from infection and works to restore health.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:
Diseases like smallpox and polio have decreased due to successful vaccination programmes. However, lifestyle-related diseases such as diabetes and heart problems are now more common due to poor diet, physical inactivity, stress and pollution. These diseases are non-communicable and result from choicRead more
Diseases like smallpox and polio have decreased due to successful vaccination programmes. However, lifestyle-related diseases such as diabetes and heart problems are now more common due to poor diet, physical inactivity, stress and pollution. These diseases are non-communicable and result from choices in our daily lives rather than germs. Hence, while medical science helped control some diseases, changing lifestyles have created new health challenges.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:
Climate change can increase diseases by creating favorable conditions for germs and vectors like mosquitoes. Warmer weather and irregular rains can increase mosquito-borne diseases like malaria and dengue. Poor air quality can trigger asthma and contaminated water due to floods can cause infections.Read more
Climate change can increase diseases by creating favorable conditions for germs and vectors like mosquitoes. Warmer weather and irregular rains can increase mosquito-borne diseases like malaria and dengue. Poor air quality can trigger asthma and contaminated water due to floods can cause infections. Changes in the environment affect both people and animals, increasing the risk of new or re-emerging diseases spreading faster than before.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:
Emotions like stress and worry negatively affect our physical health. Constant stress can disturb sleep, reduce appetite, cause headaches and weaken the immune system. When we are emotionally upset, we may stop exercising, eat poorly and lose interest in social interactions. This imbalance affects bRead more
Emotions like stress and worry negatively affect our physical health. Constant stress can disturb sleep, reduce appetite, cause headaches and weaken the immune system. When we are emotionally upset, we may stop exercising, eat poorly and lose interest in social interactions. This imbalance affects both mind and body, making it easier for diseases to attack. Hence, mental well-being is just as important as physical health for a healthy life.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:
People in certain groups—like the elderly, infants or those living in poor areas—are more affected during outbreaks. They may lack clean water, proper food or healthcare. Poor sanitation and crowded places help diseases spread faster. Also, people with weak immunity or pre-existing illnesses may getRead more
People in certain groups—like the elderly, infants or those living in poor areas—are more affected during outbreaks. They may lack clean water, proper food or healthcare. Poor sanitation and crowded places help diseases spread faster. Also, people with weak immunity or pre-existing illnesses may get sicker easily. Social and environmental conditions play a big role in how diseases affect different groups of people.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:
How does your body respond to an infection such as common cold?
When you catch a cold, your immune system quickly responds. You may get a runny nose, cough or fever. These symptoms are your body’s way of fighting off the virus. White blood cells increase to destroy the virus. Fever helps kill the virus by raising body temperature. All these changes show how yourRead more
When you catch a cold, your immune system quickly responds. You may get a runny nose, cough or fever. These symptoms are your body’s way of fighting off the virus. White blood cells increase to destroy the virus. Fever helps kill the virus by raising body temperature. All these changes show how your body defends itself from infection and works to restore health.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See lessWe rarely see cases of smallpox or polio these days, but diseases like diabetes and heart problems are more common. Why?
Diseases like smallpox and polio have decreased due to successful vaccination programmes. However, lifestyle-related diseases such as diabetes and heart problems are now more common due to poor diet, physical inactivity, stress and pollution. These diseases are non-communicable and result from choicRead more
Diseases like smallpox and polio have decreased due to successful vaccination programmes. However, lifestyle-related diseases such as diabetes and heart problems are now more common due to poor diet, physical inactivity, stress and pollution. These diseases are non-communicable and result from choices in our daily lives rather than germs. Hence, while medical science helped control some diseases, changing lifestyles have created new health challenges.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See lessCould climate change lead to new types of diseases?
Climate change can increase diseases by creating favorable conditions for germs and vectors like mosquitoes. Warmer weather and irregular rains can increase mosquito-borne diseases like malaria and dengue. Poor air quality can trigger asthma and contaminated water due to floods can cause infections.Read more
Climate change can increase diseases by creating favorable conditions for germs and vectors like mosquitoes. Warmer weather and irregular rains can increase mosquito-borne diseases like malaria and dengue. Poor air quality can trigger asthma and contaminated water due to floods can cause infections. Changes in the environment affect both people and animals, increasing the risk of new or re-emerging diseases spreading faster than before.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See lessHow do emotions like stress or worry affect us and make us sick?
Emotions like stress and worry negatively affect our physical health. Constant stress can disturb sleep, reduce appetite, cause headaches and weaken the immune system. When we are emotionally upset, we may stop exercising, eat poorly and lose interest in social interactions. This imbalance affects bRead more
Emotions like stress and worry negatively affect our physical health. Constant stress can disturb sleep, reduce appetite, cause headaches and weaken the immune system. When we are emotionally upset, we may stop exercising, eat poorly and lose interest in social interactions. This imbalance affects both mind and body, making it easier for diseases to attack. Hence, mental well-being is just as important as physical health for a healthy life.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See lessWhy do some groups of people get affected more than others during disease outbreaks?
People in certain groups—like the elderly, infants or those living in poor areas—are more affected during outbreaks. They may lack clean water, proper food or healthcare. Poor sanitation and crowded places help diseases spread faster. Also, people with weak immunity or pre-existing illnesses may getRead more
People in certain groups—like the elderly, infants or those living in poor areas—are more affected during outbreaks. They may lack clean water, proper food or healthcare. Poor sanitation and crowded places help diseases spread faster. Also, people with weak immunity or pre-existing illnesses may get sicker easily. Social and environmental conditions play a big role in how diseases affect different groups of people.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See less