WE can take care of our respiratory system in simple ways like doing physical activities to help our lungs be exercised. Do eat healthy foods so it'll be healthy and can be take good care of. Also, go to a doctors appointment at least once or twice a year to see if theres any changes in our respiratory system and can take care of it in time :)
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We can help to our resperatory system simply by doing execises daily ,avoiding bad habbits like ciggarets,