Thanks for your column on this subject, it has always been a source of great discussion in our house. I have not seen the Michigan study but I would like to know how the study handled stay at home spouse (male or female) in determining the results of 27 hours per week of housework for wives and 10 hours for husbands. In our house my wife has stayed at home throughout the lives of our and has therefore had more opportunity to perform the housework than myself.