Remembering

A long time ago in an animal physiology class I had to learn how to take a person's blood pressure. For the life of me, I don't remember why that was a necessary part of animal physiology. I learned a whole lot in that class but obviously it hasn't all stuck with me. I might have learned about conjugated linoleic acid in my animal nutrition class but I don't remember. I think that if we could remember just a very small fraction of the things that we forget we would all be geniuses. And why is it that we forget the things we want to remember and remember the things we want to forget? Crazy, I tell you!