Below is another study out of Spain illustrating the beneficial effects of olive oils rich in polyphenols and the Mediterranean diet. However this study claims it is good for you for a surprising reason – it changes how your genes deal with factors connected to atherosclerosis. This study implies that our genes are not predetermined at birth to act only in one way. We can change how our genes function based on good habits in all areas of our life. Because the human species is so adaptable it seems this is the only sensible conclusion and a very positive one at that.