A little off-topic but I recently realized the cultural history of "appetizers." Most of us, myself included, are used to appetizers being a restaurant thing. But I did some digging and it appears there is a valid scientific use. "Whetting one's appetite" is useful for everyone if they want to eat healthier meals. The average person consumes _pounds_ of food daily. If you're like me, it is difficult to eat a large meal even if it is tasty and healthy only if by the size of it. A good meal would include an appetizer to get one acclimated to the larger, less tasty, more work-required meal that is next.
Realizing this helped me adjust all my meals to include some kind of appetizer. Now I eat more healthy food and it isnt as much of a mental struggle.
Hope this realization helps someone else too..