I'm thinking primarily about food here, but I'd include anything about behavior, activity, routine, etc if you think that there's a case for it.
In my case I'm pretty sure that spicy food is somehow good for you. Not to excess, but I feel like regular consumption of capsaicin rich foods is good for the digestive tract somehow. And given the strong relationship between the nervous system of the stomach and the brain, it's probably got some correlative events in the brain.