For centuries wives have had the coveted job of nagging their families about all the things they should and shouldn't do. These fussy sayings are lovingly called "old wives' tales."
Originally an evolutionary tool to deal with snot-nosed children and passive husbands, these axioms have morphed into lessons for living, stemming from a fear of the unknown and an ancient desire to explain the unexplainable.
But some of these old wives tales are dumb. Who really wants to wait thirty minutes to swim after a sandwich if they don't actually have to?