Seems like every two weeks there’s a new study about how having kids affects parents. Some say it makes us happy, while others say it depresses us. Some say it extends our lifeapan, while others say it shortens us. Well, now there’s another piece of the puzzle.

According to new research, being a parent may make us healthier by reducing our risk of catching a cold by more than 50 percent.

Researches are Carnegie Mellon University exposed health adults over 18 to a virus that causes the common cold. Researchers found that compared to people without kids, parents with one or two kids were 48 percent less likely to get sick with a cold. Having three or more lowered the risk by 61 percent.

The researchers couldn’t identify why, exactly, parents seemed to be more cold-resistant than non parents. That may explain why the study ended up getting published in a journal called Psychosomatic Medicine. Dr. Sheldon Cohen, professor of psychiatry at Carnegie Mellon University and lead author of the study, explained it this way: “We expect that a psychological benefit of parenthood that we did not measure may have been responsible. Although parenthood was clearly protective, we were unable to identify an explanation for this association.”

A bit more info on this story here.