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The EGR system routes many of the exhaust gases (6 ? 10%) through the EGR valve, last on the Intake System, and in the end in the combustion chamber. The exhaust gases are inert i.e. they don't burn within the combustion chamber; also, the exhaust gases use up a number of the space which could preferably be taken with the intake air. This decreases the volume of intake air available for the combustion process during each Power Stroke; which experts claim decreases the peak combustion temperatures. This leads to lower NOx emissions. However, it isn't great news for the people those who are always considering the future trying to find the subsequent best thing rather than experiencing the present. Although it doesn't appear to have a similar unwanted effects on his or her health since the people who find themselves constantly looking back, they may 't be as content because they overlook what they've got and do not take enogh time for it to benefit from the present. Because of this they also are apt to have a lesser quality lifestyle. Anxiety due to a general medical condition