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How are non-communicable diseases caused?
Non-communicable diseases develop due to lifestyle, environmental factors or inherited genes. Eating unhealthy food, sitting too much, smoking and not exercising can lead to conditions like diabetes, obesity, asthma and heart disease. Pollution and stress also increase risks. These diseases do not sRead more
Non-communicable diseases develop due to lifestyle, environmental factors or inherited genes. Eating unhealthy food, sitting too much, smoking and not exercising can lead to conditions like diabetes, obesity, asthma and heart disease. Pollution and stress also increase risks. These diseases do not spread between people but can last a long time. Regular exercise, healthy diet, avoiding harmful substances and routine health check-ups can prevent or manage these conditions.
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 lessWrite about Diseases transmitted by insects.
Some diseases are spread by insects called vectors. Mosquitoes spread malaria, dengue and chikungunya. Houseflies can spread germs from garbage to food, causing stomach infections. Insects pick up pathogens from infected persons or dirty areas and pass them through bites or contact. Preventing suchRead more
Some diseases are spread by insects called vectors. Mosquitoes spread malaria, dengue and chikungunya. Houseflies can spread germs from garbage to food, causing stomach infections. Insects pick up pathogens from infected persons or dirty areas and pass them through bites or contact. Preventing such diseases includes using mosquito nets, applying repellents, covering water tanks and keeping surroundings clean. Controlling insect breeding helps reduce these infections in the community.
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 lessDiseases spread through contaminated water and food.
Contaminated food and water can carry harmful bacteria or viruses. Diseases like cholera, typhoid, hepatitis A and ascariasis are caused this way. These germs affect the stomach, liver and intestines. Drinking boiled water, eating clean and properly cooked food and washing hands before meals help stRead more
Contaminated food and water can carry harmful bacteria or viruses. Diseases like cholera, typhoid, hepatitis A and ascariasis are caused this way. These germs affect the stomach, liver and intestines. Drinking boiled water, eating clean and properly cooked food and washing hands before meals help stop their spread. Poor sanitation and open defecation make the problem worse. Clean water and personal hygiene are key to preventing such diseases.
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 lessWrite Some common communicable diseases affecting humans.
Common communicable diseases in humans include influenza (flu), common cold, measles, chickenpox, tuberculosis, cholera, typhoid, malaria and dengue. These diseases are caused by pathogens like viruses, bacteria or protozoa and spread through air, water, food, direct contact or insects. MaintainingRead more
Common communicable diseases in humans include influenza (flu), common cold, measles, chickenpox, tuberculosis, cholera, typhoid, malaria and dengue. These diseases are caused by pathogens like viruses, bacteria or protozoa and spread through air, water, food, direct contact or insects. Maintaining hygiene, avoiding contact with sick individuals, using clean water and getting vaccinated help in preventing these infections and keeping ourselves and others safe.
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 are communicable diseases caused and spread?
Communicable diseases are caused by germs called pathogens. These can spread in many ways—through sneezing, coughing, touching infected surfaces, drinking unclean water, eating contaminated food or mosquito bites. Diseases like flu, dengue and typhoid are examples. To stop their spread, we must washRead more
Communicable diseases are caused by germs called pathogens. These can spread in many ways—through sneezing, coughing, touching infected surfaces, drinking unclean water, eating contaminated food or mosquito bites. Diseases like flu, dengue and typhoid are examples. To stop their spread, we must wash hands, cover our mouth when sneezing, boil water, avoid sharing personal items and get vaccinated. Clean surroundings and early treatment also help protect others.
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