Dr. John Gottman interviewed a lot of unhappily married couples.
The ones who were happily married had a lot in common with a man he called Dexter.
Dexter said, "When we first moved in we kept the house together, we handled the money together. We also shared cooking and cleaning.
Dr. Gottman also states that husband's have better sex lives when they share the housework.
Note: He didn't say when husband's help once in a while.