5 Hz microcurrent stimulation before bedtime improves sleep and mental state
Zhou Weiyi
Luo Wei
Chen Lele
Wang Dingding
Zhou Renlai
Abstract：Objective Previous studies have suggested that bilateral 5-Hz microcurrent stimulation has a hypnotic effect,but the lack of evidence on how the stimulation affects subjects'sleep limits the validation of this intervention.To address this gap,a crossover experimental design was employed,recruiting both insomnia and non-insomnia subjects.Methods 10 participants with insomnia and 10 healthy participants were selected to attend our study.In this crossover study,true(5 Hz)vs.sham stimulation was applied over the parietal temporal lobes.Impact of stimulation on subjective sleep experience,sleep efficiency,sleep structure and psychomotor vigilance task(PVT)was assessed.Results Subjects who received the true 5-Hz stimulation before bedtime had significantly enhanced sleep efficiency,sleep quality,and mental state compared to the night of sham stimulation.Additionally,subjects who received true stimulation exhibited higher sleep efficiency and a later appearance of dream sleep.These findings suggest that 5-Hz microcurrent stimulation before bedtime can enhance both objective and subjective sleep efficiency.Conclusion 5 Hz microcurrent stimulation before bedtime improved sleep efficiency of subjects and also enhanced their subjective perception of sleep.
Keywords：insomniatranscranial electrical stimulationsleep qualitysleepmental state
Publication Date：2025-06-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 199-205 )