A new study of one California community found that women who had been pregnant at least four times were less likely to die from cardiovascular disease than those who were never pregnant.
The research suggests that women who are able to get pregnant are healthier to begin with.
The study offered reasons for the link. First, women who are pregnant more times produce more estrogen over the long run, and longer lifetime exposure to the hormone may have protective heart effects. Also, women who have more adult children are more likely to have social support as they age, also lessening their chances of having heart-related deaths.
Read more about this study at Reuters