Absence of human contact is associated with declines in cognitive function. But as the COVID-19 pandemic brings concerns about the potential harms of isolation to the fore, researchers are still hunting for concrete evidence of a causal role as well as possible mechanisms.

Digital biomarkers of cognitive decline could alert us to the early stages of dementia before irreversible damage occurs.

A woman whose DNA suggested she’d develop early-onset dementia staved off cognitive decline for decades.

A growing body of evidence supports the theory that neural hyperactivity and hyperconnectivity precede the pathological changes that lead to neurodegeneration.

AI models can pick up subtle alterations in linguistic and vocal attributes of spoken language that may be indicative of failing health.

The agency warns that plasma treatments costing thousands of dollars, which supposedly treat the infirmities of old age, have not been proven “safe or effective.”

A study compares verbal and math test scores to air quality measurements in China and finds a correlation.

The test uses levels of plasma amyloid-β to estimate the buildup of protein plaques in the brain.

A team of Stanford University researchers say that administering young people’s blood plasma to Alzheimer’s patients could improve cognitive function, but the results have been criticized.