There are also a number of features that vary between continents like that that have to do with how we metabolize food that we ingest, or that have to do with how our immune systems deal with microbes that try to invade our bodies.
Postoje također brojne značajke koje variraju među kontinentima na način da se moramo nositi s time kako metaboliziramo hranu koju jedemo ili kako se naš organizam bori s mikrobima koji pokušavaju napasti naše tijelo.