Residential Green Space Linked to Better Cognitive Function

Dr Marcia Pescador Jimenez Exposure to green space may boost cognitive function, new research suggests. Results of a large prospective study showing increasing exposure to residential green space was associated with significantly higher scores on cognitive function measures in middle-aged women compared with women who had less exposure. This association may be explained by a … Read more

Impaired Vision an Overlooked Dementia Risk Factor

Impaired vision in older adults is an underrecognized and modifiable dementia risk factor, new research suggests. Investigators analyzed estimated population attributable fractions (PAFs) associated with dementia in more than 16,000 older adults. A PAF represents the number of dementia cases that could be prevented if a given risk factor were eliminated. Results showed the PAF … Read more

Does Metformin Blunt Diabetes Link to Brain Aging?

Researchers published the study covered in this summary on medRxiv.org as a preprint that has not yet been reviewed. Key Takeaways Type 2 diabetes appears to significantly accelerate normal brain aging. Metformin use does not appear to prevent neurocognitive decline. Why This Matters Although preliminary evidence links type 2 diabetes to neurologic and cognitive decline, … Read more

More Evidence COVID ‘Brain Fog’ Is Biologically Based

Patients with persistent cognitive impairment months after illness with mild COVID-19 have higher levels of inflammatory markers in their cerebrospinal fluid (CSF). Researchers found elevated levels of CSF immune activation and immunovascular markers in individuals with cognitive post-acute sequelae of SARS-CoV-2 infection (PASC). Patients whose cognitive symptoms developed during the acute phase of COVID-19 had … Read more

‘Staggeringly High’ Rates of Psychiatric Symptoms After COVID-19

DENVER — Neurocognitive and psychiatric symptoms of mental illness, including posttraumatic stress disorder (PTSD), are alarmingly high among patients who have previously had COVID-19 — even among those who were not hospitalized with the virus, new research shows. The findings are from an online survey of more than 800 respondents. “Regardless of how long ago … Read more

Executive Function Deficits a New Treatment Target for PTSD?

DENVER — Deficits in executive function are linked to with development of posttraumatic stress disorder (PTSD) symptoms and exacerbation of such symptoms over time, new research suggests. “To our knowledge, this study is the first to show that executive function deficits maintain PTS symptoms following trauma exposure,” investigators note in research presented here at the … Read more

First ‘Before-and-After’ COVID Brain Imaging Study Shows Changes

Editor’s note: Find the latest COVID-19 news and guidance in Medscape’s Coronavirus Resource Center. Even mild cases of COVID-19 are associated with brain changes including decreased gray matter, an overall reduction in brain volume, and cognitive decline, a new imaging study shows. In the first study to use magnetic resonance brain imaging, before and after … Read more

Early Menopause Tied to Early Dementia Risk

Earlier menopause appears to be associated with a higher risk of dementia, and earlier onset of dementia, compared with menopause at normal age or later, according to a large study. “Being aware of this increased risk can help women practice strategies to prevent dementia and to work with their physicians to closely monitor their cognitive … Read more

Can Caring for a Pet Protect the Aging Brain?

Years spent caring for a dog or cat may help mitigate cognitive decline among older adults, new research suggests. In a large study of Medicare benefits, pet owners had slower cognitive decline over 6 years than their peers who did not care for a pet. “Previous research has studied the impact of pets on overall … Read more