Think about the great flavor of jolly ranchers, they will take you back to a special moment or a singular time in your life, as they do for me. I am immediaely reminded of some moments in my past and have distinct memories of not very fun experiences at a doctor and dentist, but then getting a delicious jolly rancher afterwards and immediately having my mood altered. There is something very relieving about a hard candy that cannot be chewed and must be slowly broken down in your mouth. It probably has to do with oral fixations and that aspect of human psychology, that we associate actions with our mouths with eating food the most important thing in our lives, so anytime we can engage in these we are receiving dopamine in our minds.