There is mounting scientific evidence that certain foods have a bigger impact on your mood and overall sense of well being than once thought. In a recent scientific study, participants kept a daily log of the various foods they ate along with how they felt. At the end of the study, it was concluded that happiness, peace of mind, and overall vitality were directly linked to the amount of fruits and vegetables consumed. Furthermore, those who ate the most fruits and vegetables had the highest “happiness” score. Bottom line: if you want to feel better, then build your diet around fruits and vegetables, and plenty of them.