Major brain changes that occur around age 50 could impact dementia risk By Melissa Rudy Fox News Published August 25, 2026 7:00am EDT +...

Major brain changes that occur around age 50 could impact dementia risk https://www.foxnews.com/health Microglia decline after age 50 as inflammatory blood-derived immune cells infiltrate the hippocampus, potentially driving neuroinflammation and dementia. Protective immune cells begin to decline and are increasingly replaced by more inflammatory cells in midlife, study finds Melissa Rudy By Melissa Rudy Fox News Published August 25, 2026 7:00am EDT https://www.foxnews.com/health/major-brain-changes-occur-around-age-50-could-impact-dementia-risk