Prevents disease keep tissue healthy and protect vital organs from damage

The three ways to evaluate a risk factor are: decide if you have control over the risk factor compare the benefit vs. the risk of a choice

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The dietary guidelines for americans recommend (a) avoiding smoking. (b) engaging in aerobic exercise for 60 minutes at least five days a week. (c) making all of your grain choices whole grains. (d) increasing your intake of fruits and vegetables.