MIT-Led Research Links Impaired Sleep Brain Waves to Reduced Waste Clearance in Older Adults

An MIT-led study published in Nature Aging reveals that brain waves crucial for waste clearance during deep sleep are impaired in older adults. Researchers used fMRI and EEG to observe blood and cerebrospinal fluid flow, suggesting that reduced neurovascular coupling in older individuals hinders this vital brain cleansing process. This finding has implications for understanding cognitive health and aging.