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We reviewed 20 randomized controlled trials concerning the intervention methods and effects of lavender essential oil on adults' sleep quality. Fourteen showed positive intervention effects. A mixture of subjective and objective indicators was used. Lavender essential oil was associated with improved sleep quality before insomnia or other sleep disorders occurred. [ABSTRACT FROM AUTHOR]

Summary: Introduction: Higher level functional capacity is considered a crucial component for independent living among the elderly. The aim of the present study was to show the relationships between self-assessed masticatory ability and higher level functional capacity among young-old persons living independently in the community. Materials and methods: A total of 366 persons aged 67–74 years was enrolled in the study. Data on background factors and self-assessed masticatory ability were collected by questionnaires. Self-assessed masticatory ability was classified into one of three categories (ability to chew all kinds of food, only somewhat hard food, or only soft or puréed food). Higher level functional capacity was measured using the Tokyo Metropolitan Institute of Gerontology Index, which consists of three sublevels: instrumental self-maintenance, intellectual activity, and social role. Results: Significant differences were found in the total score (13-point scale), intellectual activity (4-point scale), and social role (4-point scale) among the three groups of self-assessed masticatory ability. Multivariate logistic regression analysis showed that severely impaired masticatory ability (the ability to chew only soft and puréed food) was significantly related to a loss of three points or more for the total score, and a loss of one point or more for intellectual activity and social role after adjustment for a number of confounding variables. Conclusion: Self-assessed masticatory ability is significantly and independently related to higher level functional capacity, especially intellectual activity and social role, among young-old persons living independently in the community. It is worthwhile noting masticatory ability when clinicians investigate factors associated with disability in independent living. [Copyright &y& Elsevier]

Summary: Background: Serum albumin is considered a key nutrient that is significantly related to general health among elderly persons. The aim of the present study was to determine the relationship between masticatory ability and serum albumin levels in the elderly. Methods: A total of 768 persons were enrolled in the study. Data on background factors and the self-assessed masticatory ability were collected by means of questionnaires. An intraoral examination was performed to examine the pattern of occluding pairs of natural teeth, and blood samples were collected from the cutaneous vein to measure serum albumin levels. A forward stepwise multivariate logistic model was constructed with serum albumin levels as the dependent variable and the self-assessed masticatory ability as the principal independent variable, to adjust for potential confounding variables. Results: Sex, current employment status, social interaction, and self-assessed masticatory ability were retained in the final model, and they were significantly associated with serum albumin levels. The odds ratios for lower levels of serum albumin (≤ 40 g/L) were 1.88 for males, 1.70 for non-working status, 1.55 for low social activity status, and 1.43 for the self-assessed impairment of masticatory ability. Conclusion: A weak, statistically significant relationship may exist between self-assessed impairment of masticatory ability and lower levels of serum albumin in the elderly living independently. [Copyright &y& Elsevier]