why do we fall ill ? हम बीमार क्यों पड़ते हैं ? what is disease ? how disease spread and affects?

why do we fall ill ? हम बीमार क्यों पड़ते हैं ? what is disease ? how disease spread and affects?
#gadgetsprinciple
why do we fall ill ?
watch this video till end...........
disease is very impact on the body
prevent the disease conditions and aware the peoiples


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