The principle and scientific basis of sleep aid devices

Sleep aids primarily rely on physical techniques to regulate sleep-related physiological processes. Transcranial microcurrent stimulation (CES) is a common method, using low-intensity microcurrents applied to the prefrontal cortex or postauricular nerves to regulate neurotransmitter secretion and break the vicious cycle of "anxiety and insomnia leading to more anxiety."

 

Audio- and light-stimulating devices use specific frequencies of sound waves or light to induce a relaxed state in the brain, helping to shorten the time it takes to fall asleep. Biofeedback devices monitor physiological indicators such as heart rate and respiration, guiding users to adjust their autonomic nervous system function.

 

Clinical studies show that after 1-2 weeks of regular use of CES devices, some users experienced shorter sleep onset times and fewer nighttime awakenings, with an average improvement rate of 62%.