Morning Sickness Reduces Risk of Miscarriage Another study sees a benefit to the nausea 11 comments Comments Morning sickness may help in the long run, a new study suggests. (AP) (User Submitted) – It turns out that morning sickness isn't all bad—women who suffer from pregnancy-related nausea and vomiting are less likely to miscarry, a new study suggests. Researchers—they say their work advances previous studies by focusing on the duration of symptoms—found that women who did not experience morning sickness during the first 3 months of pregnancy were 3.2 times more likely to have a miscarriage than women who did get sick. The connection is even more pronounced for older women, as those over age 35 who had morning sickness for half their pregnancy were 80% less likely to miscarry than those who had none. It's unclear why there is a link, but researchers hypothesize that the nausea and vomiting is an indication of the increase in hormones that prevent miscarriage. Read the full article at the CBC.