New US research has provided some insight into how much physical activity is needed to help prevent cognitive decline as we age, finding that any exercise brings benefits as long as a minimum amount of 52 hours is completed over a six-month period.
Led by researchers at the Berenson-Allen Center for Noninvasive Brain Stimulation at Beth Israel Deaconess Medical Center (BIDMC), the new review looked at 98 trials including more than 11,000 participants to try to determine the optimal dose of exercise needed to maintain cognitive performance in both healthy older adults and those with mild cognitive impairment and dementia.