I have read parts of the book "What men want women to know about Men" and much of a mans personality, health, and emotions, are directly linked to his penis. The book is great at explaining EXACTLY what men WANT and NEED. If I was a LD women reading that book, it would be downright frightening as to how much of a man's life is wrapped up in his penis. When they say men think with it, they are not far from wrong!