In respiratory system it may cause of lung disease and lung cancer whilwe the other one is th circulatory system it may cause of heart disease and heart attack
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Circulatory-When a person is lack of exercise it may cause less number of heartbeats, meaning there is less blood pumped by the heart that can cause other complications to our body.

Respiratory-A person who is smoking is more likely to have different respiratory didseases. 

Our lifestyle can affect the systems in our body because the diseases that we will acquire is probably because our unhealthy lifestyle. Our bad habits towards our body can bring different systems disorders.
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