A new study to be presented at the SLEEP 2026 annual meeting found that irregular sleep—including variability in sleep timing ...

The vast majority of people have an ongoing conversation with themselves, an inner voice, that plays an important role in their daily lives. But between 5% and 10% of the population do not have the ...

Alzheimer disease neuropathology is associated with worse cognitive performance, according to results of a study.

MILAN — Antidepressants escitalopram and duloxetine have been shown to improve verbal memory in moderate to severe depression, a clinical effect linked to changes in serotonin 4 (5-HT4) receptor ...

Women make up two-thirds of patients with Alzheimer's disease - so why is it that women are less likely than men to be diagnosed with its precursor, amnestic mild cognitive impairment (aMCI)? This was ...

A research team has revealed the link between the frequency of sleep apnea events during the rapid-eye-movement stage and the severity of verbal memory impairment in older adults at risk for Alzheimer ...

Findings seen in pilot study of older adults with mild cognitive impairment, but other coprimary outcomes did not meet significance thresholds. HealthDay News — Low‑dose oral lithium may slow verbal ...

Verbal fluency—the ease and speed with which a person can produce language—may be more than just a reflection of vocabulary or conversational skill. Emerging research suggests a compelling association ...