It was my constant habit of husband to coax me in to looking at his head and tell him how bald he had gone.i told him that it was not much that the loss of his hair was very minimal,but then he is never satisfied and feels that i am saying like this so that i dont dissapoint him.so then my friend told me that if it was such a problem for me then i should get the Norwood Scale home.what is the function of a Norwood Scale and on what basis does the Norwood Scale calculate hair loss at different levels?