The parents in our cycling group were discussing the subject of teenagers and their appetites. Most agreed that teenagers would eat anything, anywhere and at any time. Some were concerned that such appetites always made it hard to judge when you should feed them because they were always grazing.

A veteran parent of six children told us of his method for judging the true hunger of teenagers.

"I would hold up a piece of cold, cooked broccoli, and if they were jumping and snapping at it, I figured they were hungry enough to be fed."