Men have more problems than Women

Got this Email from a collegue at work and tot it was quite cute=) It says that women has alot of worries-Am i fat? Does my bf love me? What do they have that I dont? My mother. His Mother. etc and Men have only one worry-Women.

I came up with this theory that Men have more troubles than Women. If Women have "n" problems, then Men will have "n+1" problems. This is because Women problems are subsets of Women. "n+1" = Women problems + Women= Serious Problem.

Assumption: Boyfriend cares about Girlfriend.

Here is a diagram showing the subsets to aid understanding.