Sound stimulation can manipulate brain waves during REM sleep, a stage crucial for memory and cognition. Using advanced technology, researchers were able to increase the frequency of brain oscillations that slow down in dementia patients, potentially improving memory functions. The non-invasive technique could pave the way for innovative treatments for dementia by targeting brain activity during sleep. This approach offers hope for enhancing memory and cognition with minimal disruption to patients' lives.

Researchers have developed a new framework to understand why people are fascinated by events centered around themes of death, disaster, and suffering. These "dark events" include everything from historical commemorations to cultural festivals and horror experiences. The study highlights six key concepts that shape our attraction to these events, such as commercialization, public engagement, and the symbolic presence of death. Understanding these factors could offer deeper insights into societal behavior and collective memory.