Penis Study Have you heard about the latest PENIS STUDY??? The question was "why is the head of a penis larger around than the shaft"? The United States decided to do some research on this. They spent 2 years and $180,000 on this research. Their conclusion was that the head was larger in order to give the man more pleasure during sex. Germany decided to research this. They spent 3 years and $250,000. Their conclusion was that the head was larger in order to give the woman more pleasure during sex. With all of this "penis" research going on, Poland decided to get involved. They spent 3 days and $75 on research. Their conclusion was that the reason the head was larger than the shaft was so that the man's hand didn't slip off and he wouldn't hit himself in the face!