A new study reveals that exercise increases autophagy (derived from Greek roots: auto, meaning ‘self’, and phagy, ‘to eat’.), a mechanism by which the body cleans up whatever is unwelcome and tagged as ‘bad’. A summary of the study main points is featured in The Economist. This study was performed on genetically modified mice, but taking a good look around you can easily see the differences between people that exercise and those who do not. In addition, many studies have been pin-pointing that low-fat diets and in general a healthy diet, with the Mediterranean Diet being top on the list, promotes a better and longer life and increases the immune defense.