Typically, when we eat we get dopamine release, especially when we eat after being very hungry. If you've ever gone camping, or you're very, very hungry, the food tastes that much better. And that's actually because of the way that deprivation states increase the way that dopaminergic circuits work. Our perception of dopamine is heightened when the receptors for dopamine have not seen much dopamine lately, they haven't bound much dopamine.