BACKGROUND:Many studies have proven the beneficial effects of regular exercise on psychiatric conditions. This study was set to explore the therapeutic effects and the mechanisms of treadmill exercise on a time-dependent sensitization (TDS) model which is a classical animal model for mimicking posttraumatic stress disorder (PTSD).

METHODS:Forty-seven rats were randomly assigned to one of four groups: CON (control), TDS (model), EX (treadmill), or SER (sertraline). TDS model was developed to evaluate the anti-PTSD-like effects of moderate treadmill exercise with 4-week running program. High-performance liquid chromatography technology was used to determine the levels of monoamine neurotransmitters in TDS rats. The expression of key proteins in BDNF/PI3K/Akt/CREB signaling pathway were assayed by the Western blot method.

RESULTS:The TDS procedures induced behavioral deficiencies. These deficiencies were reversed by treadmill exercise. Subsequent monoamine assays revealed that the treadmill exercise significantly increased serotonin levels in the hippocampus and decreased dopamine levels in the prefrontal cortex. Data from Western blot experiment demonstrated that exercise could normalize the decreased BDNF/TrkB/pAkt/pCREB levels in the hippocampus.

CONCLUSIONS:This study deduced that treadmill exercise ameliorated contextual fear conditioning and anxiety-like behavior in TDS model. According to the study, the mechanism involved in alleviating PTSD symptoms by treadmill exercise was due to increased 5-HT levels in the hippocampus and decreased DA levels in the prefrontal cortex. It also involved the upregulation of BDNF and the related PI3K/AKT/CREB signaling pathway.

Interruptions to time spent sitting can ameliorate detrimental metabolic-health consequences of high volumes of sedentary time, but their potential mental health benefits have not been examined. We used the Swedish Health Profile Assessment database, a general health assessment offered to all employees working for companies or organisations connected to occupational and health services. Cross-sectional analyses examined data from 40,550 employees (60% male, mean age = 42 years), collected in 2017-2019. Participants reported the proportion of time (almost always; 75% of the time; 50% of the time; 25% of the time; and almost never) usually spent in leisure-time sedentary behaviours; and, separately, the frequency (never; rarely; sometimes; often; and very often) of interruptions (every 30 min) to sedentary time. Logistic regression models assessed associations of sedentary time, and the frequency of interruptions to sedentary time, with depression/anxiety symptoms. Fully adjusted models included physical exercise. Compared to those in the lowest sedentary time category, those in the medium and high categories had 1.52 (95% confidence interval (CI) = 1.40-1.66) and 3.11 (95% CI = 2.82-3.42) higher odds of frequent depression/anxiety symptoms, respectively. Compared to those who never/rarely interrupted their sedentary time, those who reported interruptions sometimes, often and very often had 0.72 (95% CI = 0.65-0.80), 0.59 (95% CI = 0.53-0.65), and 0.53 (95% CI = 0.46-0.59) lower odds of depression/anxiety symptoms, respectively. In stratified analyses, more frequent interruptions to sedentary time were associated withlower odds of depression/anxiety symptoms, except among those in the lowest interruptions categories (never/25% of the time). More regularly interrupting sitting during leisure-time may reduce the odds of experiencing symptoms of depression and anxiety.

Mental health issues have been increasingly recognized as public health problems globally. Their burden is projected to increase over the next several decades. Additional therapies for mental problems are in urgent need worldwide due to the limitations and costs of existing healthcare approaches. Essential oil aromatherapy can provide a cost-effective and safe treatment for many mental problems. This pilot study observed the effects of bergamot essential oil inhalation on mental health and well-being, as measured by the Positive and Negative Affect Scale, in a mental-health treatment center located in Utah, USA. Fifty-seven eligible participants (50 women, age range: 23-70 years) were included for analysis. Fifteen minutes of bergamot essential oil exposure improved participants' positive feelings compared with the control group (17% higher). Unexpectedly, more participants participated in experimental periods rather than control periods, suggesting even brief exposure to essential oil aroma may make people more willing to enroll in clinical trials. This study provides preliminary evidence of the efficacy and safety of bergamot essential oil inhalation on mental well-being in a mental health treatment center, suggesting that bergamot essential oil aromatherapycan be an effective adjunct treatment to improve individuals' mental health and well-being. © 2017 The Authors. Phytotherapy Research published by John Wiley&Sons Ltd.

Biofeedback refers to the operant training of physiological responding. Variants include electromyography (EMG), electrodermal activity (EDA), skin temperature, heart rate (HR) and heart rate variability (HRV), respiratory biofeedback of end-tidal CO(ETCO), electroencephalography (EEG) signal, and blood oxygen-level dependent signal using functional magnetic resonance imaging (fMRI). This chapter presents a qualitative and quantitative systematic review of randomized controlled trials of biofeedback for anxiety disorders as defined by the 3rd through 5th editions of the Diagnostic and Statistical Manual of Mental Disorders (DSM). Meta-analytic results indicated that biofeedback (broadly defined) is superior to wait list, but has not been shown to be superior to active treatment conditions or to conditions in which patients are trained to change their physiological responding in a countertherapeutic direction. Thus, although biofeedback appears generally efficacious for anxiety disorders, the specific effects of biofeedback cannot be distinguished from nonspecific effects of treatment. Further, significant limitations were identified in the existing literature, with the majority receiving a"weak"rating according to Effective Public Health Practice Project (EPHPP) rating system guidelines. Future directions for research are discussed.

Cannabidiol (CBD), a Cannabis sativa constituent, is a pharmacologically broad-spectrum drug that in recent years has drawn increasing interest as a treatment for a range of neuropsychiatric disorders. The purpose of the current review is to determine CBD's potential as a treatment for anxiety-related disorders, by assessing evidence from preclinical, human experimental, clinical, and epidemiological studies. We found that existing preclinical evidence strongly supports CBD as a treatment for generalized anxiety disorder, panic disorder, social anxiety disorder, obsessive-compulsive disorder, and post-traumatic stress disorder when administered acutely; however, few studies have investigated chronic CBD dosing. Likewise, evidence from human studies supports an anxiolytic role of CBD, but is currently limited to acute dosing, also with few studies in clinical populations. Overall, current evidence indicates CBD has considerable potential as a treatment for multiple anxiety disorders, with need for further study of chronic and therapeutic effects in relevant clinical populations.

Functional constipation (FC) is a common functional bowel disorder disease that affects life quality of a large number of people. This study aimed to explore the impact of different intensities of electro-acupuncture (EA) treatment for FC patients. Totally, 111 patients with FC meeting the Rome III criteria were randomly assigned to different intensities of EA groups (low and high intensity of EA groups) and medicine-controlled (MC) group. In EA groups, patients were treated with EA at quchi (LI11) and shangjuxu (ST37) bilaterally for 4 weeks, 5 times/week in the first 2 weeks, and 3 times/week in the last 2 weeks. In MC group, 5 mg mosapride citrate was administered orally 3 times/day for 4 weeks. Spontaneous bowel movement frequency each day was recorded using a constipation diary. Self-rating anxiety scale (SAS) and self-rating depression scale (SDS) were used to assess the patients' psychological state. Cortisol (CORT), substance P (SP), and vasoactive intestinal polypeptide (VIP) were evaluated at baseline and at the end of 4 weeks after treatment. As compared with the baseline, there was statistically significant increase in stool frequency every week (P<0.01), but there was no statistically significant difference among the three groups. As compared with the baseline, after 4 weeks of EA therapy, the scores of SDS and serum levels of CORT were decreased significantly in low intensity of EA group (P<0.01), and the serum levels of SP and VIP were increased significantly (P<0.05); the scores of SAS and SDS and serum levels of CORT were decreased significantly in high intensity of EA group (P<0.05), and the serum levels of SP and VIP were increased significantly (P<0.05); the serum levels of CORT and VIP were increased significantly in MC group (P<0.05). As compared with MC group, after 4 weeks of treatment, the serum levels of SP were signifcicantly increased in low intensity of EA group (P<0.01). Low and high intensities of EA could increase the stool frequency, improve the FC patient's anxiety and depression, reduce the serum levels of CORT, and increase the serum levels of SP and VIP effectively. It is concluded that both low and high intensities of EA are effective for FC patients, but there is no significant difference between the low and high intensities of EA.

Background Anxiety is the most common psychological reaction in women during labor. Similar to numerous other surgeries, postoperative pain is also reported following cesarean section (C-section). According to the (Gate) Control Theory, there is a relationship between pain and psychological problems such as anxiety. Accordingly, the present study aimed to compare the effect of aromatherapy using lavender and Damask rose essential oils on the level of anxiety and severity of pain following C-section. Methods This triple-group randomized clinical trial was performed on 90 mothers who visited Motahari Hospital of Jahrom, Iran, for C-section in 2017. The incidence and severity of pain and anxiety were measured and recorded for all three groups prior to intervention. The intervention groups underwent aromatherapy with lavender and Damask rose essential oils. Patients were asked to inhale cotton balls, separately stained with three drops of each essential oil at a distance of 10 cm for 30 mins. The severity of pain and anxiety was measured using the visual analogue scale (VAS) and the Spielberger State-Trait Anxiety Inventory (STAI) 5 min after the specified process, respectively. The control group underwent aromatherapy in a similar fashion with normal saline. Finally, data were analyzed using descriptive statistical indices and ANOVA and Kruskal-Wallis tests in SPSS 21. Results There was no significant difference between the three groups in the mean severity of pain and anxiety before the intervention (p>0.05). The mean severity of pain and overt anxiety in the lavender and Damask rose aromatherapy groups was significantly different than the control group after the intervention (p<0.001). In addition, no significant difference was observed between the overt and overall anxiety levels of the two intervention groups after the intervention (p>0.05). Conclusions The findings suggested that inhalation aromatherapy can reduce the severity of overt anxiety and pain after C-section, with Damask rose essential oil showing a larger effect than lavender.

BACKGROUND:Anxiety and pain are recognized as major problems of burn patients; because pharmaceutical treatments for controlling anxiety and pain symptoms lead to complications and an increase in health costs, nonpharmacological nursing interventions were considered for this group of patients. This led to the present study aimed at comparing the effect of aromatherapy massage with inhalation aromatherapy for anxiety and pain in burn patients.

METHODS:This single-blind clinical trial was carried out on 90 patients with burns<20%. Patients were randomly assigned to one of three groups, namely aromatherapy massage, inhalation aromatherapy, and control group. The patients assigned to the aromatherapy massage group received a massage for half an hour using a blend of lavender and almond oils, while a blend of rose and lavender aroma was used for the inhalation aromatherapy group. Spielberger State Anxiety Inventory was used for measuring anxiety and the visual analog scale (VAS) scale was used for measuring pain.

RESULTS:The results showed that three groups were equal in terms of demographics, disease characteristics, and scores of anxiety and pain at the baseline. The mean decreases of anxiety scores were -0.04±5.08, 6.33±12.55, and 6.43±10.60 in the control group, aromatherapy massage group, and inhalation group, respectively (p=0.007). The mean decrease of pain scores were -0.10±0.96, 1.70±1.84, and 0.97±1.56 in the control group, aromatherapy massage group, and inhalation group, respectively (p<0.001).

CONCLUSION:The study results showed the positive effect of aromatherapy massage and inhalation aromatherapy compared with the control group in reducing both anxiety and pain of burn patients. Therefore, both interventions, which are inexpensive, and noninvasive nursing tasks can be proposed for alleviating anxiety and pain of burn patients.

Hospitalization in the cardiac care unit can increase anxiety in patients. This study aimed to compare hand reflexology versus acupressure on anxiety and vital signs in female patients with coronary artery diseases. This double-blinded randomized placebo-controlled trial with a pre- and post-intervention design was conducted on 135 female patients with coronary artery diseases. Female patients hospitalized in a cardiac care unit were randomly divided into three groups of hand reflexology, acupressure and placebo (= 45 patients in each group) using blocking and a table of random numbers. Data was collected using the Spielberger anxiety inventory. Also, their vital signs were measured before, immediately after and half an hour after the intervention. Data analysis was performed using descriptive and analytical statistics. Before the intervention, there was no statistically significant difference in anxiety levels between the groups (>0.05). Also, the effects of hand reflexology and acupressure immediately and half an hour later on the reduction of anxiety and vital signs were equal (<0.05). Implementation of hand reflexology and acupressure can have positive effects on anxiety and vital signs in patients with coronary artery diseases. They can reduce patients' anxiety with an equal effectiveness.

PURPOSE:This study aimed to investigate the effect of aromatherapy massage on anxiety, depression, and physiologic parameters in older patients with acute coronary syndrome.

METHODS:This randomized controlled trial was conducted on 90 older women with acute coronary syndrome. The participants were randomly assigned into the intervention and control groups (n = 45). The intervention group received reflexology with lavender essential oil, but the control group only received routine care. Physiologic parameters, the levels of anxiety and depression in the hospital were evaluated using a checklist and the Hospital's Anxiety and Depression Scale, respectively, before and immediately after the intervention.

RESULTS:Significant differences in the levels of anxiety and depression were reported between the groups after the intervention. The analysis of physiological parameters revealed a statistically significant reduction (P<.05) in systolic blood pressure, diastolic blood pressure, mean arterial pressure, and heart rate. However, no significant difference was observed in the respiratory rate.

CONCLUSIONS:Aromatherapy massage can be considered by clinical nurses an efficient therapy for alleviating psychological and physiological responses among older women suffering from acute coronary syndrome.

Objectives:To critically assess the effect of aromatherapy on the psychological symptoms as noted in the postmenopausal and elderly women.

Methods:Three following databases were systematically searched: MEDLINE, Scopus and Cochrane Library (Cochrane Central Register of Controlled Trials) from inception to January 2018. The search keywords included 'menopause' AND (aromatherapy), without language restrictions.

Results:In this study, 4 trials were included which fit into our systematic review. The findings demonstrated that the aromatherapy massage have significantly improved psychological symptoms in menopausal and elderly women as compared to the control group (standardized mean difference [SMD] = -1.24; 95% confidence interval, -0.188 to -0.606;<0.001 random effect model; 3 trials, moderate to high heterogeneity, I= 0.76;= 0.028). According to 1 of the trials, the aromatherapy oil massage was no more effective than the untreated group regarding their experience of symptoms such as nervousness.

Conclusions:The aromatherapy may be beneficial in attenuating the psychological symptoms that these women may experience, such as anxiety and depression, but it is not considered as an effective treatment to manage nervousness symptom among menopausal women. This finding should be observed in light of study limitations.

OBJECTIVE:Some evidence suggests that Hatha yoga might be an effective practice to reduce anxiety. To examine the effect of Hatha yoga on anxiety, we conducted a meta-analysis of relevant studies extracted from PubMed, PsycINFO, the Cochrane Library, and manual searches.

METHODS:The search identified 17 studies (11 waitlist controlled trials) totaling 501 participants who received Hatha yoga and who reported their levels of anxiety before and after the practice. We estimated the controlled and within-group random effects of the practice on anxiety.

RESULTS:The pre-post within-group and controlled effect sizes were, Hedges' g = 0.44 and Hedges' g = 0.61, respectively. Treatment efficacy was positively associated with the total number of hours practiced. People with elevated levels of anxiety benefitted the most. Effect sizes were not moderated by study year, gender, presence of a medical disorder, or age. Although the quality of the studies was relatively low, the risk of study bias did not moderate the effect.

CONCLUSIONS:Hatha yoga is a promising method for treating anxiety. However, more well-controlled studies are needed to compare the efficacy of Hatha yoga with other more established treatments and to understand its mechanism. This article is protected by copyright. All rights reserved.

OBJECTIVES:The objective of this study was to evaluate the potential anxiolytic effect of lemongrass (Cymbopogon citratus) aroma in healthy volunteers submitted to an anxiogenic situation.

DESIGN:Forty male volunteers were allocated to four different groups for the inhalation of lemongrass essential oil (test aroma: three or six drops), tea tree essential oil (control aroma: three drops), or distilled water (nonaromatic control: three drops). Immediately after inhalation, each volunteer was submitted to an experimental model of anxiety, the video-monitored version of the Stroop Color-Word Test (SCWT).

OUTCOME MEASURES:Psychologic parameters (state anxiety, subjective tension, tranquilization, and sedation) and physiologic parameters (heart rate and gastrocnemius electromyogram activity) were evaluated before the inhalation period and before, during, and after the SCWT.

RESULTS:Individuals exposed to the test aroma (three and six drops), unlike the control groups, presented a reduction in state anxiety and subjective tension, immediately after treatment administration. In addition, although they presented an anxious response to the task, they completely recovered from it in 5 min, unlike the control groups. Physiologic alterations along the test were not prevented by any treatment, in the same way as has previously been observed for diazepam.

CONCLUSIONS:Although more investigations are necessary to clarify the clinical relevance of lemongrass essential oil as an anxiety treatment, this work shows that very brief exposure to this aroma has some perceived anxiolytic effects.

OBJECTIVES:To investigate whether Sudarshan Kriya and related practices (SK&P) can lead to increased global assessment of functioning (GAF) and increased feeling of wellness in male prisoners with a non psychotic psychiatric disorder.

METHODOLOGY:This is a six month parallel randomized controlled study with sample size of 230 male prisoners. Participants meeting inclusion and exclusion criteria were assigned to a study or control group by simple random allocation in which random allocation sequence was generated using a random number table. Each individual study participant was involved in a daily program of SK&P for six weeks. Each individual control participant was instructed to sit in an armchair with his eyes closed and gentle attention to their breath for duration of six weeks. To be included in this study, a participant must be a male prisoner diagnosed to be suffering from a psychiatric disorder (except psychosis and bipolar affective disorder [BPAD]) by ICD-10 (DCR) criteria with age between 18 and 65 years.

RESULTS:Majority of subjects were unemployed married individuals, educated until undermatric level and not having occupational skills of more than an unskilled labor level. Practicing SK&P for six weeks led to improvement in mean±SD score of study participants in GAF, anxiety (ANX), depressed mood (DEP), positive well being (PWB), general health (GH), self control (SC), vitality (VT) and total positive general well being (PGWB). Change in mean±SD score of study participants when compared with control participants was statistically significant in terms of GAF, ANX, DEP, PWB, GH and PGWB. Increase in SC and VT scores was statistically insignificant when compared with control participants.

CONCLUSION:Practicing SK&P helps in improving GAF, PWB, GH and total PGWB of an individual. SK&P also causes significant reduction in anxiety and depression levels. Effect of SK&P on SC and VT is insignificant.

OBJECTIVES:To investigate whether Sudarshan Kriya and related practices (SK&P) can lead to increased global assessment of functioning (GAF) and increased feeling of wellness in male prisoners with a non psychotic psychiatric disorder.

METHODOLOGY:This is a six month parallel randomized controlled study with sample size of 230 male prisoners. Participants meeting inclusion and exclusion criteria were assigned to a study or control group by simple random allocation in which random allocation sequence was generated using a random number table. Each individual study participant was involved in a daily program of SK&P for six weeks. Each individual control participant was instructed to sit in an armchair with his eyes closed and gentle attention to their breath for duration of six weeks. To be included in this study, a participant must be a male prisoner diagnosed to be suffering from a psychiatric disorder (except psychosis and bipolar affective disorder [BPAD]) by ICD-10 (DCR) criteria with age between 18 and 65 years.

RESULTS:Majority of subjects were unemployed married individuals, educated until undermatric level and not having occupational skills of more than an unskilled labor level. Practicing SK&P for six weeks led to improvement in mean±SD score of study participants in GAF, anxiety (ANX), depressed mood (DEP), positive well being (PWB), general health (GH), self control (SC), vitality (VT) and total positive general well being (PGWB). Change in mean±SD score of study participants when compared with control participants was statistically significant in terms of GAF, ANX, DEP, PWB, GH and PGWB. Increase in SC and VT scores was statistically insignificant when compared with control participants.

CONCLUSION:Practicing SK&P helps in improving GAF, PWB, GH and total PGWB of an individual. SK&P also causes significant reduction in anxiety and depression levels. Effect of SK&P on SC and VT is insignificant.

Context Background:Type 2 diabetes has been strongly associated with psychosocial factors such as stress, anxiety, depression, and quality of life (QOL). There is not much evidence whether yoga can improve these factors and motivate individuals to engage in active lifestyle.

Aims:This study aims to evaluate the effect of yoga and exercise over glycemic control, anxiety, depression, exercise self-efficacy (ESE), and QOL after 3-month program.

Methods:Two hundred and twenty-seven individuals were randomly allocated to yoga group (YG) and exercise group. YG practiced yoga for 2 weeks under supervision and then carried out practice at home for 3 months. The exercise group practiced 30 min of brisk walking for 5 days a week.

Results:On comparison among the groups, in YG, there was a mean change of 0.47 in glycated hemoglobin which was greater than mean reduction of 0.28 in the exercise group with<0.05. State anxiety reduced by 7.8 and trait anxiety reduced by 4.4 in YG (<0.05) in 3 months as compared to nonsignificant reductions of 3 and 1 in mean of state and trait anxiety scores in the exercise group (>0.05). There was a statistically significant reduction in depression score in both the groups, 8.6 in yoga and 4.0 in exercise, which was greater in YG. ESE improved by 19.2 in YG (<0.05), whereas it improved only 2.2 in the exercise group (>0.05). QOL improved by 23.7 in YG and 3.0 in the exercise group which was nonsignificant in the exercise group as compared to YG.

Conclusions:Yoga is superior to exercise alone as a lifestyle modification program in improving glycemic control, anxiety, depression, and QOL as well as ESE.

Binaural beats are an auditory illusion perceived when two different pure-tone sine waves are presented one to each ear at a steady intensity and frequency. We evaluated their effectiveness in reducing preoperative anxiety in dentistry. Sixty patients (30 in each group) who were to have impacted third molars removed were studied (experimental group: 20 women and 10 men, mean (range) age 24 (18-35) years, and control group: 22 women and 8 men, mean (range) age 28 (15-47) years). All patients were fully informed about the operation preoperatively, and their anxiety recorded on a visual analogue scale (VAS). The local anaesthetic was given and the patients waited for 10minutes, during which those in the experimental group were asked to listen to binaural beats through stereo earphones (200Hz for the left ear and 209.3Hz for the right ear). No special treatment was given to the control group. In both groups anxiety was then recorded again, and the tooth removed in the usual way. The paired t test and t test were used to assess the significance of differences between groups. The degree of anxiety in the control group was unchanged after the second measurement (p=0.625), while that in the experimental group showed a significant reduction in anxiety (p=0.001). We conclude that binaural beats may be useful in reducing preoperative anxiety in dentistry.

INTRODUCTION:Military service is a stressful environment. Methods to reduce stress may result in the mental health promotion of military forces. There are various methods for relieving anxiety. Acupressure is one of them. Hence, this study was carried out to explore effects of acupressure at the P6 and LI4 acupressure points on the anxiety level of army soldiers.

METHODS:A randomised double-blind design was undertaken. A total of 120 Iranian army soldiers were randomly assigned to three groups, namely P6, LI4 and control. The P6 and LI4 acupressure points are effective in lowering the anxiety level. In the intervention groups, acupressure was applied at the P6 and LI4 points three times for 10 min at 30 min intervals. In the control group, the thumb pad, which is not an acupressure point, was pressed. The anxiety level of the subjects was measured before the intervention and 30 min after the last intervention. The instruments included a demographics questionnaire and the State-Trait Anxiety Inventory.

RESULTS:There was no significant difference between the three groups with respect to the anxiety level in the preintervention phase. However, the mean anxiety score in the P6 group decreased significantly from 53.35±9.7 to 49.02±9.3 (p=0.005). The mean anxiety score in the LI4 group also decreased significantly from 53.37±8.39 to 45.47±8.16 (p<0.001). In the control group, there was no significant difference between the preintervention and postintervention phases (p=0.16). In the postintervention phase, the analysis of variance test showed a significant difference between the three groups in terms of the anxiety level (p=0.04).

CONCLUSIONS:Acupressure can reduce soldiers' anxiety at the acupressure points, especially at the LI4 point. It is recommended that this simple and cost-effective intervention be used to relieve soldiers' anxiety in stressful situations.

TRIAL REGISTRATION NUMBER:20150715023216N4.

There is increasing evidence that acupuncture is useful in treating somatic and psychological disorders caused by stress; however, the physiological basis of the effect remains unclear. In the present study, we evaluated the effect of acupuncture on psychological conditions (i.e., anxiety) and prefrontal cortex (PFC) activity. We studied 10 patients with anxiety disorders and measured anxiety levels by means of the State-Trait Anxiety Inventory (STAI), including state anxiety (STAI-1) and trait anxiety (STAI-2). Employing a two-channel NIRS device, we measured oxy-Hb concentration in the bilateral PFC at rest, and evaluated asymmetry of the PFC activity by calculating the Laterality Index at Rest (LIR). The patients were treated by acupuncture at Yui Clinic in Osaka. The treatment significantly decreased the STAI-1 score (p < 0.001), but not the STAI-2 score (p > 0.05). The NIRS measurements indicated the presence of spontaneous oscillations of oxy-Hb in the bilateral PFC at rest before and after the treatment. Notably LIR decreased significantly in 7 out of the 10 subjects (p < 0.01), while 3 subjects showed an increasing tendency. The present pilot study indicates that acupuncture is effective in decreasing anxiety levels in patients with anxiety disorders. Our NIRS data suggest that acupuncture may alter the balance of PFC activity at rest, resulting in relaxation effects. Our NIRS data suggest that acupuncture changes the balance of PFC activity toward left-dominant, resulting in relaxation effects on the patients.