Why do some race acquire green about the gills or vomit when they see the inside?

of a human body? Is there a actual logical reason for this?Why do some race acquire green about the gills or vomit when they see the inside?
surrounded by the case you are describing, it is an involuntary response.
some race can't handle the verbs of blood and guts
They find it disgusting and it psychologically induces nauseousness.
Fear of blood- hemophobia, hemaphobia, or hematophobia.
Any one of these or a host of other phobias could be the cause. Also, some society are just squeamish. Others see the inside of a body and it reminds them of an unpleasant memory. There are so abundant reasons and most (if not all) are reasonably logical.