Is increased sleepiness in our 80s tied to higher dementia risk?

A study led by Yue Leng, Ph.D., and Sasha Milton, followed the sleep patterns of 733 older female participants to see if specific patterns of change were associated with a higher risk of dementia. The participants, whose average age was 83, were monitored by wrist devices that track movement and time spent asleep. They had normal cognition at the start of the study.

Hikikomori: Identifying people who avoid social participation in Japan can vary depending on criteria used

The definition of “hikikomori”—people who avoid social participation and generally stay at home—according to criteria used by the Japanese Cabinet Office survey, as reported in the press, differs from the diagnostic criteria for hikikomori proposed in the field of psychiatry. Researchers at the University of Tsukuba have found, in a survey of residents of Kasama City, Ibaraki Prefecture, that the populations described by different definitions of hikikomori had little overlap, and the prevalence rates of hikikomori differed according to the definition used.

A skull-mapping app can greatly improve safety and accuracy of a common neurosurgical procedure

Access to potentially life-saving neurosurgical care remains very uneven worldwide, with potentially life-threatening consequences. This is especially true for a process called ventriculostomy, the most common neurosurgical procedure. Ventriculostomy involves the insertion of a catheter into the brain cavities called ventricles to drain cerebrospinal fluid and relieve intracranial pressure.

AI tool creates detailed 3D map of mouse brain metabolism, portending advances in Alzheimer’s research

It is a detailed view of the brain like never seen before. In a significant technological leap, University of Florida researchers have created a powerful new computational and artificial intelligence tool that can generate a high-resolution 3D map of the brain in mice, allowing users to zoom in and out—from all angles, like a Google Earth map—and peer into the full set of molecules that produce energy for brain functions.

COVID-19: We’re no better prepared for a pandemic today than we were in 2020, says researcher

On March 11, 2020, the World Health Organization declared COVID-19 a pandemic. According to official data, there have been more than 770 million cases of COVID, which have caused over 7 million deaths in 231 countries—almost 2.2 million of them in Europe. Other reports estimate that the number of deaths globally was much higher, perhaps even more than double.