Primary insomnia is that people have difficulty in falling sleep and difficulty in maintaining sleep. People with insomnia has caused an increased incidence of serious medical conditions, such as obesity, heart disease, high blood pressure and diabetes.
Acupuncture has been proven to be effective for insomnia with minor side-effects and has been increasingly used in private clinics located in 46 states in the United States as a treatment for insomnia.
Previous studies on the mechanism of acupuncture have revealed that acupuncture can affect the activation in brain regions. The activation in brain regions at 15 min after acupuncture stimuli were greater than the activation at 5 min after acupuncture stimuli.
A recent study recruited 129 patients with insomnia and examined the effect of acupuncture on insomnia. After the 5-week acupuncture treatment, patients sleep quality was improved significantly.
fMRI scan has shown that in the following brain regions are rrelated to sleep quality: right cerebellum posterior lobe, temporal gyrus (left middle temporal gyrus, left superior temporal gyrus), left extra-nuclear, right anterior cingulate, left parahippocampa gyrus, frontal gyrus (bilateral inferior frontal gyrus, left middle frontal gyrus, bilateral superior frontal gyrus), parietal lobule (right precentral gyrus, left postcentral gyrus, left supramarginal gyrus, left inferior parietal lobule, left superior parietal lobule, left precuneus). After acupuncture treatment, activities in these regions are altered.
Yu-Kai Wang et al BMC Complement Med Ther. 2020; 20: 254.