This might not be news to mothers, but scientists now say the more children a woman has, the more likely she is to have a heart attack, stroke or heart failure.
Researchers at the University of Cambridge have found having five or more children is associated with a 40 per cent increased risk of a serious heart attack in the next 30 years, compared with having just one or two children.
Having five or more children was also associated with a 30 per cent increased risk of heart disease - the major cause of heart attacks - as well as a 25 per cent increased risk of stroke and a 17 per cent increase in the risk of heart failure compared with one or two children.
The study, being presented at the British Cardiovascular Society Conference in Manchester, saw the team study data from more than 8,000 women aged between 45 to 64.
They found women who had a history of pregnancy loss but no children had a 60 per cent increased risk of heart disease and a 45 per cent increased risk of heart failure in the following 30 years, compared with women who had one or two live births.
They said this is likely to reflect underlying health problems that increase the risk of pregnancy loss as well as heart disease and heart failure.