Why One Side of Your Nose Has More Airflow

Why is human body so complex? It resembles a wonder machine, where every process has a meaning and purpose. Human evolution is still occurring, but we can now analyze it in retrospect. Take a look at human nose. Why do we have two nostrils? Why do we cry? How many new cells are produced every day? Here're 43 facts about human body that make us humans seem unearthly.

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