Taking care of grandkids one day a week helps keep grandmothers mentally sharp, finds a study from the Women's Healthy Aging Project study in Australia.
The study was published online in Menopause, the journal of The North American Menopause Society (NAMS). That's good news for women after menopause, when women need to lower their risks of developing Alzheimer's disease and other cognitive disorders. On the other hand, taking care of grandchildren five days a week or more had some negative effects on tests of mental sharpness.
"We know that older women who are socially engaged have better cognitive function and a lower risk of developing dementia later, but too much of a good thing just might be bad," said NAMS Executive Director Margery Gass, MD. The 186 Australian women, ages 57 to 68, took three different tests of mental sharpness and also noted whether they thought their own children had been particularly demanding of them in the last year. Among the 120 grandmothers, those who spent one day a week taking care of grandchildren performed best on two of the three tests.
Although other research has looked at the relationship between mental sharpness and being socially engaged, this is the first time that this type of research has looked at grandmothering. "Because grandmothering is such an important and common social role for postmenopausal women, we need to know more about its effects on their future health," says Dr. Gass. "This study is a good start."