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Stress Management Health Center

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Mom's Voice Soothes Stress, Even by Phone

Study Shows a Mother's Voice Can Reduce Stress Levels in Young Girls
WebMD Health News
Reviewed by Laura J. Martin, MD

May 13, 2010 -- A kind word from mom by phone may be as good as a hug in calming the frayed nerves of frazzled daughters, a new study indicates.

In the study, which involved 61 girls aged 7 to 12, researchers say a mere phone call from their moms helped reduce the stress levels of the youngsters.

Led by biological anthropologist Leslie Seltzer, PhD, of the University of Wisconsin-Madison, the research team set out to measure fluctuations of the stress hormone cortisol, as well as of the "comfort" or "cuddle" hormone oxytocin.

The girls, all volunteers, were suddenly placed in stressful situations. They were asked without warning to deliver a speech in front of a group of strangers, an exercise that can create stress in people of any age.

Then they were drilled with difficult math questions -- also in front of an audience. As expected, cortisol levels, known to increase with stress, skyrocketed when measured in saliva soon after the stressful situation.

Seltzer and Seth Pollak, PhD, a psychology professor at University of Wisconsin, Madison, then divided the girls into three groups.

The mothers of one group were on hand to hug and offer physical comfort to their daughters. Other girls were handed a telephone, with mom on the line. A third group watched an emotionally neutral film called March of the Penguins.

Researchers say the calming effect on the girls who were comforted by a hug or physical touch was more immediate, but that the stress hormone levels also quickly dropped in those who received soothing words from their mothers by phone.

For the girls who watched the film, cortisol levels were still considerably above normal an hour after their stressful experiences. Similarly, levels of the "cuddle hormone" oxytocin went up in girls who were hugged as well as those who received comforting phone calls, though not quite as fast in those whose mothers were not physically present.

Oxytocin levels were flat or low in the girls who watched the movie. The hormone levels were tested in samples of urine collected at various times during the course of the experiment.

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