New research reveals that women who take care of their grandchildren one day a week are less likely to develop Alzheimer’s. This is because the mental activity derived from looking after youngsters can actually increase brain function. Women who looked after their grandchildren one day a week had a better memory for words. (Keep in mind, however, that if grandparents look after grand-kids five days a week or more, it can actually have a negative impact on their mental health.) Since Irene started looking after her two granddaughters once a week, she no longer has pain in her bones or a vitamin D deficiency — this is from being outside more often, as well as being more mentally and physically active. Check out the video to hear more about this study!