University of Arizona Jun 5 2026 How we sleep may have lasting impacts for our brain health as we age. A new University of Arizona study has found that several common sleep behaviors may be linked to signs of brain aging.  The study, published in the journal Alzheimer's & Dementia , used existing brain scans and questionnaire responses from more than 23,000 middle-aged and older adults from a large biomedical database. The work is part of a broader collaborative project between the U of A