Think back to elementary school. Remember sitting in history class, learning about how the men of the house went out hunting for the food while the women stayed at home preparing and cooking the meals? Now, think a little bit harder. Remember how the women had to lean over hot fireplaces to get the meats to just the right temperature for consumption? Remember how they had to use the muscles in their arms, wrists, and hands to knead the dough to bake the bread?