Question

why do we fall ill? what's the reason behind this?​

Answer 1

Answer:

Whenever the normal working of our body system gets disturbed, we feel sick. It can happen when a bacterium, virus, etc, enters our body or because of unhealthy living practices like lack of exercise or intake of drugs/excessive sugar/salt. There are two major kinds of diseases: infectious and non-infectious.

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Answer 2

Answer:

Simple answer, because we don't care about ourselves so bacteria and virus attack on us.

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