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We rarely see cases of smallpox or polio these days, but diseases like diabetes and heart problems are more common. Why?

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Vaccination has eliminated many infectious diseases like smallpox and polio. But modern lifestyle choices, such as unhealthy diets, inactivity and stress, have led to an increase in non-communicable diseases like diabetes and heart problems.

Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure NCERT solutions

Class 8 Science Grade 8 Chapter 3 Health: The Ultimate Treasure question answer

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  1. 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/

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