Diseases like malaria, dengue and chikungunya are spread by mosquitoes. These insects carry germs from sick people and infect others when they bite. Using nets and repellents helps stop these vector-borne diseases. Class 8 Science Grade 8 Chapter 3 Health: The ...
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Non-communicable diseases are caused by poor diet, lack of exercise, pollution, stress or genetics. They do not spread from person to person. Examples include asthma, diabetes, high blood pressure and cancer. Class 8 NCERT Science Curiosity Chapter 3 Health: The Ultimate ...
We can prevent diseases by keeping clean, eating healthy food, using clean water, avoiding junk food, exercising and getting vaccinated. Controlling mosquito breeding and visiting doctors regularly also help keep diseases away. Class 8 NCERT Science Curiosity Chapter 3 Health: The ...
In Bhadrak, Odisha, people worked together to build and use toilets. This reduced open defecation, improved hygiene and lowered cases of diarrhoea and infections. It shows how clean habits protect public health. Class 8 NCERT Science Curiosity Chapter 3 Health: The ...
Our body develops disease-fighting ability through its immune system. It gets stronger with good food, sleep, exercise and vaccines. Past infections and vaccinations help the body remember and fight germs better next time. Class 8 NCERT Science Curiosity Chapter 3 Health: ...