New research suggests that helping care for grandchildren may improve memory and strengthen overall brain function, and you don’t have to babysit every day to benefit!
If you’ve ever come home from an afternoon with the grandkids feeling both exhausted and somehow energized, science may have an explanation for that second feeling. A new study published in January 2026 in the journal Psychology and Aging suggests that grandparents who care for their grandchildren score higher on tests of memory and verbal skills than those who don’t. For grandmothers especially, that involvement may actually slow the brain’s natural cognitive decline over time.
What the Researchers Found
The team found that, overall, grandparents who provided any care for their grandchildren scored higher on tests of memory and verbal fluency (how easily you can find and use words) compared with those who didn’t. The results held even after accounting for differences such as age and health.
The brain boost didn’t require a major time commitment. Among grandparents who provided care, how often they babysat made no measurable difference to their brain health. A grandmother who looked after her grandchildren once a week exhibited the same cognitive performance as a grandmother who cared for hers several days a week.
What mattered more than the time they spent together was what they did during that time. Of the seven caregiving activities that were examined, two activities stood out: helping with homework and doing leisure activities, such as playing games. Only these activities were associated with better performance on both the memory and verbal fluency tests.
Helping a child with homework often requires explaining concepts in different ways, problem-solving on the fly, and adapting to how the child learns. Playing games and doing activities together require more mental activity than passive interaction and involve creativity, planning, and constant social interaction.
The study found that engaging in a variety of activities was beneficial. Grandparents who rotated through different types of activities, such as homework help one day, cooking together another, and outings on weekends, showed better cognitive functioning overall.
Why Grandmothers Seem to Benefit More
One of the study’s most striking findings involves a gender gap. Grandmothers who provided care experienced slower cognitive decline than those who didn’t babysit. Grandfathers also enjoyed cognitive benefits from interacting with their grandchildren but showed no slowing of cognitive decline compared with men who didn’t babysit.
Researchers suspect that traditional gender roles may account for this difference. Grandmothers typically engage in more hands-on caregiving, such as preparing meals, planning activities, and managing schedules. Meanwhile, grandfathers tend to occupy a more supportive role by providing care alongside their spouses.
Another possibility for the difference in benefits between the genders could be that grandfathers may feel more obligated to help, while grandmothers more often choose to be involved. It could be that caregiving done out of a sense of duty rather than desire might not deliver the same mental benefits.
What This Means for You
The study has not proven with certainty that babysitting causes better brain health; it’s possible that grandparents who are already cognitively sharper are simply more likely to take on active, part-time caregiving roles. It also doesn’t mean caregiving prevents dementia or Alzheimer’s disease. But the results of the six-year study are encouraging. Grandparents can benefit from spending time with their grandkids, regardless of the amount of time – and with the biggest benefits showing up in more mentally engaging activities. The broader experience of being engaged and involved, it seems, is what counts.
Just as important, the caregiving context matters. Time with grandkids is most likely to feel beneficial when it’s enjoyable and manageable, not overwhelming or done out of obligation. And because this research can’t prove that caregiving causes better cognition, it’s best viewed as encouraging evidence that staying socially and mentally engaged – in ways that feel positive and sustainable – may support brain health over time. In other words, your grandchildren may be doing as much for you as you’re doing for them.
Courtesy of Elder Law Answers
