A mother's voice has soothing propertiesIt turns out when your mom isn't harassing you to give her some grandbabies or at least call once in a while, her voice can actually help your body increase production of stress-relieving hormones.

According to a new study of little girls between the ages of 7 and 12, your mom's voice has the power to soothe. The girls had to give a speech and solve math problems in front of a panel of judges (to ensure that they were thoroughly freaked out), then were sent into one of three rooms, where different things were waiting to comfort them.

To the researchers' surprise, girls who were comforted by their mother's voices over the phone had the same increase in oxytocin, a stress-relieving hormone, as those who were physically greeted by their actual mothers. Not surprisingly, both mom-methods of comfort were more effective than the third comfort, watching "March of the Penguins."

Of course, young girls were chosen because they still like their moms, but more research will be done to see how a mother's voice can affect grown-ups, whose relationships with their parents tend to be more complicated.

In the meantime, thanks, Mom! You're the best (and also my new therapist)!