It has long been joked that marriage can raise blood pressure levels, but recent studies have shown that this is a fact.
If left untreated, hypertension can increase the risk of heart attack and stroke, and the risk is 9 percent higher if the person is married, according to US researchers.
They suggest that doctors should offer couples joint treatment programs to work through the problem together.
The researchers wanted to test whether many married couples who often have the same interests, living environment, lifestyle habits and health outcomes might also share high blood pressure.
They ran analyzes on blood pressure measurements from 1,086 English couples along with 3,989 American, 6,514 Chinese and 22,389 Indian couples.
Around 47 per cent of couples in England, with an average age of 74.2 for husbands and 72.5 for wives, were found to have high blood pressure, higher than 38 per cent in the US, 21 per cent in China and 20 percent in India.
Compared to women who were married to men who did not have high blood pressure, those with men with high blood pressure were 9 percent more likely to suffer from the same.
Similar associations were seen for men with women and high blood pressure.
Bethany Barone Gibbs, researcher said that "if the man has hypertension, women are more likely to suffer from hypertension as well".
She said following this idea, changing your lifestyle, reducing stress or eating a healthier diet can lower your blood pressure. However, these changes can be difficult to achieve if your partner is not making changes with you.
*The findings were published in the Journal of the American Heart Association.