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Can older couch potatoes exercise their way to better thinking?

Can older couch potatoes exercise their way to better thinking?

Health
By 2050, there will be 2 billion members of the world over the age of 60 and the ability for those people to stay mentally fit is a big concern. As there are few available treatments for protecting brain health, is exercise part of the answer? If so, what “dose” should the doctor’s prescription pad recommend? Researchers at the University of Miami looked at 98 studies (more than 11,000 people in all) of “couch potatoes” who were all over 60 years old. Based on the Mini-Mental Status Examination -- a “mental fitness” scale used by primary care providers -- people were placed into three categories: healthy adults, those with mild cognitive impairment, and those with dementia. In all the studies, people began to exercise at various intensities for d...