• Science of Emotion and Sensibility
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• v.15 no.4
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• pp.453-468
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• 2012

This study investigated the effects of Lavandula angustifolia (L. angustifolia) aroma on the brain electrical activity evaluated by an electroencephalogram (EEG) in the male adults since many researches were performed with females and few with males. Sleep quality of 35 male adults were analyzed by Pittsburgh sleep quality index, and they were divided into two groups of good sleep quality and poor sleep quality. EEG electrodes were attached at the frontal (F3, F4), temporal (T3, T4), occipital (O1, O2), and parietal (P3, P4) regions according to the International 10-20 system. EEG was measured for 3 min per each period of before, during, and after L. angustifolia aromatherapy. Subjects with good sleep quality showed increases in the delta power at the parietal region of both cerebral hemispheres and in the theta power at the temporal region of right hemisphere (p<0.05), and a decrease in the alpha at the parietal region of both cerebral hemispheres (p<0.05). And subjects with poor sleep quality showed increases in the delta power at the frontal region of left cerebral hemisphere and in the theta power at the frontal region of both hemispheres (p<0.05). It is concluded that L. angustifolia aroma has effects on decreasing an awakening status related-brain wave and increasing the sleep status related-brain waves in the male adults with good sleep quality, and has also effects on increasing the sleep status related-brain waves in the male adults with poor sleep quality.

• Journal of Life Science
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• v.22 no.8
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• pp.1077-1084
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• 2012

This study investigated the effects of Origanum majorana essential aroma therapy on electrical activity in the brain as evaluated by an electroencephalogram (EEG). The subjects were 29 healthy female young adults, and their sleep quality was assessed by using the Pittsburgh Sleep Quality Index. EEG electrodes were attached at the frontal, temporal, occipital, and parietal lobes according to the international 10-20 system. Subjects were exposed to organic Origanum majorana essential aroma (50 ${\mu}l$) for a period of 3 minutes each before, during, and after aromatherapy. Subjects with good sleep quality showed that Origanum majorana essential aroma increased the theta power at the frontal and temporal lobes of both cerebral hemispheres, the left parietal lobe, and the right occipital lobe. Furthermore, Origanum majorana essential aroma decreased the alpha power at the left occipital lobe and the beta power at the right temporal lobe. On the other hand, subjects with poor sleep quality showed an increase in the theta power at the temporal lobe of both cerebral hemispheres and a decrease in the alpha power at the left parietal lobe by Origanum majorana essential aroma therapy. It is concluded that Origanum majorana essential aroma therapy diminishes the state of wakefulness in the brain; alpha and beta powers were both decreased in the subjects with good sleep quality, but only alpha power was decreased in the subjects with poor sleep quality. Moreover, Origanum majorana essential aroma therapy has a sleep-inducing effect in both subjects with good sleep quality and poor sleep quality.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.4
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• pp.2609-2619
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• 2015

The purpose of this study was to investigate relationship among the depression, physical condition, daily living activities, and sleep state among old people at elderly care facilities. The subjects include old people aged 65 or older residing at an elderly care facility. At elderly care facilities, the depression of old people was related with the state of vision, mastication ability, quality of sleep, and sleep state. The degree of relation was high in the group with a poor vision, the one with a bad condition of teeth, the one that considered their quality of sleep to be poor, and the one with somnipathy. Their depression had negative correlations with age and positive ones with mastication ability and assessment of quality of sleep. At elderly care facilities, the depression of old people was highly connected with the state of vision, mastication ability, sleep state, and hearing ability. In short, the depression of old people at elderly care facilities is highly connected to the health state perceived individually. The findings point to the importance of close interest in individual health state and management of old people in poor vision, mastication ability in healthcare and nursing intervention.

• Journal of Life Science
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• v.22 no.2
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• pp.192-199
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• 2012

This study investigated the effects of Lavandula angustifolia (L. angustifolia) aroma on the brain electrical activity evaluated by electroencephalogram (EEG) in female adults with sleep disorders. The subjects were 28 healthy female adults and their sleep disorders were classified by the Pittsburgh Sleep Quality Index. EEG electrodes were attached at the frontal (F3, F4), temporal (T3, T4), occipital (O1, O2), parietal (P3, P4), reference, and ground regions according to the International 10-20 system. Subjects were exposed to the L. angustifolia aroma for 3 min. Results showed that L. angustifolia aroma decreased the occipital and parietal alpha powers, and increased the frontal theta power and occipital beta power in subjects with good sleep quality. On the other hand, L. angustifolia aroma increased the theta power in the all cranial regions after aroma treatment in subjects with poor sleep quality. In conclusion, L. angustifolia aroma diminishes a state of wakefulness in the brain and helps individuals to fall asleep. Therefore, L. angustifolia aroma may have beneficial effect for female adults with sleep disorders.

• Journal of Industrial Convergence
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• v.22 no.1
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• pp.127-135
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• 2024

This study used a convenience sampling method to find out the effect of healthy lifestyle habits of college students participating in leisure activities on sleep quality. The results are as follows. First, in majors according to the personal characteristics of college students, the arts and sports field showed higher exercise lifestyle habits than the natural field, and in leisure participation, college students participating in the sports field showed an effect on exercise lifestyle, health perception habits, eating habits, and subjective sleep. In the leisure activity period, it was found that students who participated in leisure activities for more than 3 years had an effect on exercise lifestyle, health perception habits, and daytime sleep. In leisure activity time, it was found that students who participated for 1-2 hours had an effect on exercise lifestyle, health perception habits, and eating habits. Second, it was found that bad lifestyle habits had an effect on sleep difficulties, and in daytime sleep, exercise lifestyle habits, bad lifestyle habits, and eating habits were found to have an effect.

• The Journal of the Convergence on Culture Technology
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• v.5 no.2
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• pp.287-297
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• 2019

The purpose of this study was to investigate the factors influencing suicidal ideation among the elderly over 60 years old living in the community centered on sleep and depression. A total of 210 elderly people living in a metropolitan city were surveyed about suicidal ideation, sleep pattern (sleep time, quality of sleep) and depression. Data analysis showed that 14.3% of the subjects were seniors with a high suicidal ideation, 23.3% were sleeping less than 5 hours, 17.6% were poor sleep quality, and 33.3% were depressed. According to multiple logistic regression analysis, the factors influencing suicidal ideation were identified as depression (OR=6.889, 95% CI=2.679-17.712), sleep quality (OR=3.770, 95% CI=1.469-9.679), and gender (OR=3.080, 95% CI=1.266-7.491). These three factors accounted for 31.6% of suicidal ideation variables. Based on the results of this study, it is suggested that reducing the depression and improving the quality of sleep in consideration of gender should be an essential strategy for the elderly in the community to reduce the suicidal ideation.

• Journal of the Korea Convergence Society
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• v.10 no.12
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• pp.465-476
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• 2019

This study was convergence study to determine sleep and its factors in university students on the basis of Spielman's 3P model. The participants were 191 graduate and undergraduate students who were scheduled to take the exam after 1~2 weeks. The related variables of quality of sleep were self-control, stress, test anxiety, smartphone dependence, and daytime sleepiness. Chi-square test and t-test were used to make a comparison of the quality of sleep between the good and the bad sleep quality group. Pearson's coefficient correlation analysis was performed for correlation between the quality of sleep and the general characteristics, self-control, stress, test anxiety, smartphone dependence, and daytime sleepiness. Stress and test anxiety as precipitating factors for sleep disturbance, smartphone dependency as a perpetuating factor for sleep disorder, and daytime sleepiness as a sleep-related factor were correlated with the quality of sleep; no statistically significant correlation was found with self-control as a predisposing factor in the biopsychological area. It is necessary to solve such problems with mental health as stress and test anxiety, which are factors for sleep disturbance, and smartphone dependency as a perpetuating factor for sleep disorder, in pursuit of higher quality of sleep for university students.

• Journal of Oral Medicine and Pain
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• v.31 no.2
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• pp.127-139
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• 2006

Objectives: To explore the quality of life in patients with temporomandibular disorders and to evaluate it in terms of source and duration of the pain. Methods: A total of 61 patients with temporomandibular disorders participated in this study. According to pain source, they were divided into 2 groups, masticatory muscle pain (MMP) group and intracapsular pain (ICP) group. And each group was divided into acute phase group (pain duration <6 months) and chronic phase group (pain duration=6 months). The Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36) was used to measure patients' quality of life. The scores for eight-scale profile and the physical component summary (PCS) and mental component summary (MCS) of the SF-36 were compared between groups (MMP vs. ICP and acute vs. chronic). Student t-test was used to analyze the difference of the scores of the SF-36 between MMP and ICP groups. Results: MMP group showed significantly lower score in the 3 scales of the SF-36 (Role limitations due to emotional problems, Vitality, Bodily pain) when compared to ICP group. In acute phase there was no significant difference between MMP and ICP group in PCS as well as MCS scores, but in chronic phase MMP group showed significantly lower MCS score than ICP group. Conclusions: The masticatory muscle pain in patients with temporomandibular disorders,negatively influences the quality of life especially in chronic phase, and the mental components of quality of life are significantly interfered in the TMD patients with chronic masticatory muscle pain.

• Journal of dental hygiene science
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• v.11 no.3
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• pp.243-249
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• 2011

Under the goal of investigating relations between emotional labor and sleep health according to the personality types of dental hygienists, who provide high quality medical service at dental clinics, this study surveyed 220 dental hygienists in Gumi city from July 2 to 21, 2010. The surveyed dental hygienists scored average 2.75 in emotional labor, which means their emotional labor was higher than average. Their emotional labor was in statistically significant relations with such general characteristics as educational background, place of work, salary, and drinking(p<0.05). The means of their emotional labor in six items were analyzed according to the personality types. As a result, personality type A had higher means in emotional labor than personality type B with statistical significance(p<0.05). The more stress they had from emotional labor, the worse their sleep health became. As for the relations between emotional labor and sleep health according to the personality types, the bad sleep health group accounted for 88.1% and recorded 2.85 mean scores in emotional labor, which was statistically significant(p<0.05), in personality type A. The regression analysis results of emotional labor in personality type A and sleep health indicate that the more emotional labor in personality type A they had, the worse their sleep health became. As for causality between personality type A and emotional labor, "difficulty with sleeping," "a feeling of lack of sleep when waking up," and "taking sleeping pills" had significant influences on the emotional labor of personality type A. Dental hygienist who owns the characteristics of personality type A, the more emotional labor, emotional stress of personality type A labor is high and unhealthy sleep affects the results were derived.

• Sleep Medicine and Psychophysiology
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• v.24 no.2
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• pp.118-123
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• 2017

Central sleep apnea (CSA) is a highly prevalent comorbidity in patients with heart failure and may present in 25 to 40 percent of heart failure patients. Continuous positive airway pressure (CPAP) is the primary therapeutic option and effective in treatment of obstructive sleep apnea (OSA). In heart failure patients with CSA, several trials of CPAP showed a number of positive effects in heart failure treatment. A 58-year-old male visited the hospital because of dyspnea and he was diagnosed as heart failure with ischemic heart disease. He underwent coronary angiography and received percutaneous coronary intervention due to stenosis at the middle of left anterior descending coronary artery. However, dyspnea was not completely improved after treatment with percutaneous coronary intervention. The patient also experienced snoring and sleep apnea which worsened with symptom of dyspnea in the recent year. We suspected CSA and the patient underwent polysomnography to confirm whether sleep apnea was present. During the polysomnography, CSA with Cheyne-Stokes respiration (CSR) was observed and apnea-hypopnea index was 45.9/hr. The patient was treated with CPAP. After CPAP treatment, hypoxemia and CSA were resolved and dyspnea was improved with reducing NYHA class. We report a case successfully treated with clinical improvement by presuming CSA in a patient with heart failure.