"Improving Sleep Quality with Relaxing Language"

A study by researchers from the University of Liege reveals that the human body, particularly the heart, responds to external auditory stimuli during sleep, challenging the belief that the body is disconnected from the environment during rest. Relaxing words heard during sleep can slow down cardiac activity, deepening sleep, while neutral words do not affect heart rate. This research emphasizes the importance of brain-heart interactions during sleep and suggests new avenues for enhancing sleep quality through auditory stimuli. The study's open science approach encourages further investigation into the heart's role in other sleep-related processes.