The Penis Study In 1997, Harvard funded a study to see why the head of a penis was bigger than the rest of it. After one year and $180,000, they concluded that the reason the head was larger than the shaft was to give the man more pleasure during sex. After Harvard published the study, Yale decided to do its own study. After $250,000 and 3 years of research, they concluded that the reason was to give the woman more pleasure during sex. Louisiana State University, unsatisfied with these findings, conducted its own study. After 2 weeks and a cost of around $75.46, they concluded that it was to keep a man's hand from flying off and hitting himself in the forehead! most is true