Problem:
In the majority of human beings, the apex of the heart (left ventricle) points towards the left side of the body. Sometimes however (approx. 1/12000 births), a person is born with a condition known as "Dextrocardia", in which the apex of the heart points to the right side of the body instead.
Question: Is there an evolutionary reason as to why the human heart usually points to the left side as opposed to the right side of the body? Please explain.