We haven't had a "research into the obvious" in a while, so here's a good one:
When it comes to what we eat, men and women really are different according to scientific research presented today (March 19) at the 2008 International Conference on Emerging Infectious Diseases in Atlanta, Georgia. In general, men are more likely to report eating meat and poultry items and women are more likely to report eating fruits and vegetables.
Show me the money, and I'll do research into whether men like action while women prefer to talk about feelings.