Ladies, you now have a medical excuse to stop cleaning your house as often.
Gender roles with cleaning and childcare have much more to do with heart attacks than biological factors, according to New Scientist.
They looked at more than two dozen factors - everything from gender, to blood pressure, to salary size, to marital status, to time spent on housework.
Researchers found that women in the study were in worse health a year after their heart disease diagnosis, and they pinpointed several reasons why some women's health was unable to improve.
Living in a stressful family environment, smaller paychecks, and more time spent doing housework over men were all factors.
Men, meanwhile, were less likely to improve if they were the top earner in the household.
Statistics Canada breaks down how much women work around the house compared to men.
The numbers change based on employment and marital status, but in every case, Canadian women worked on chores several more hours per week than men.
New Scientist points out that that same fact holds true in other countries, as well.
Here in the US, the Bureau of Labor Statistics states that on an average day, 20 percent of men did housework, compared to 49 percent of women.
And in the UK, that number jumps to 70 percent of women picking up most of the household chores.
As with all studies, more research is needed.
But don't give up cleaning your house just yet.
Other studies show housework can help fight depression and anxiety.