Insights & Discussion
There is evidence to support significant improvements to total sleep time and sleep efficiency with the ingestion of tart cherries.
We identified a total of 277 unique records, from which 8 studies of low-moderate methodological quality were included in the systematic review. Meta-analysis of subjectively recalled sleep efficiency (SE) and total sleep time (TST) were not significant. Objective SE, however, was significantly higher in the cherry cohort when compared to placebo with an effect size of 0.63 (95% CI 0.29–0.97, P < 0.01). There was low associated heterogeneity (I2 = 0%). Objective TST was significantly higher in the cherry cohorts, with a pooled effect size of 1.21 (95% CI 0.83–1.58, P < 0.01). There was high associated heterogeneity (I2 = 81.5%).
Discover Related Insights
High prevalence of insomnia, anxiety, and depression among perimenopausal women, emphasizing the importance of exploring acupuncture as a potential green therapy for effectively addressing these interconnected issues.
2022 Medicine Can acupuncture improve sleep quality and anxiety among women during perimenopause? Ping Y, Liang C, Fan X, Zhang L, Ying D, Wang Z
Systematic Review Anxiety Menopause Sleep
This passage discusses the prevalence of insomnia among perimenopausal women, its association with anxiety and depression, and the potential of acupuncture as a green therapy for treating these issues. The passage outlines the objectives and methods of a systematic review aiming to evaluate the efficacy of acupuncture in improving sleep quality and alleviating anxiety and depression in perimenopausal women, highlighting the need for safer alternatives to conventional medications and the significance of such a study.
Lavandula angustifolia essential oil inhalation seemed to enhance overall sleep patterns, quality, and efficiency in postmenopausal women with insomnia.
2021 Complementary Therapies in Medicine Lavender essential oil on postmenopausal women with insomnia: Double-blind randomized trial dos Reis Lucena L, dos Santos-Junior JG, Tufik S, Hachul H
Randomised Controlled Trial Lavender Postmenopausal Sleep
Methodology: 35 postmenopausal women, clinically diagnosed with insomnia, were recruited and divided into two groups - an Aroma Group and a Placebo Group - for a double-blind, randomized controlled trial. Over 29 days, participants in the Placebo Group inhaled sunflower oil, while participants in the Aroma Group inhaled lavender oil. Both groups were given sleep hygiene guidelines before embarking on the trial and received follow-up on a weekly basis. Evaluations were performed both pre- and post-intervention.
Discussion of Results: No significant differences were noted between the two groups in terms of sleep quality. However, certain tendencies were observed. Aroma Group participants showed a noteworthy reduction in the time taken to fall asleep, depression levels and postmenopausal symptoms such as hot flashes. Moreover, polysomnography data showed increased sleep efficiency in comparison to initial levels. The improvement in sleep quality over time was observed in both groups, indicating that sleep hygiene instruction and weekly follow-ups played a significant role in influencing sleep patterns and quality.
Chamomile has demonstrative positive effects on generalized anxiety disorders and sleep quality, but exhibits minimal impact on state anxiety and insomnia.
2019 Phytotherapy Research Therapeutic efficacy and safety of chamomile for state anxiety, generalized anxiety disorder, insomnia, and sleep quality: A systematic review and meta‐analysis of randomized trials and quasi‐randomized trials Hieu TH, Dibas M, Surya Dila KA, Sherif NA, Hashmi MU, Mahmoud M, et al.
Meta-Analysis Anxiety Chamomile Sleep
The methodology of this study involved rigorous systematic review and meta-analysis across multiple databases, including PubMed, Science Direct, Cochrane Central, and Scopus. The aim was to determine the efficacy and safety of chamomile for managing state anxiety, generalized anxiety disorders, sleep quality and insomnia in humans. Relevant randomized control trials were retrieved, yielding a total of 12 trials used for this study. Statistical analyses were performed with the meta package of R statistical software version 3.4.3 and RevMan version 5.3.
The results indicated that chamomile had a significant positive effect on generalized anxiety disorders (GAD) and improved sleep quality. Improvements in GAD were observed after 2 and 4 weeks of chamomile treatment. However, no significant effects were noted in the treatment of state anxiety or insomnia. Mild adverse events were reported in three trials. In conclusion, chamomile was determined to be effective and safe for treating GAD and improving sleep quality, but showed less impact on state anxiety and insomnia.
Cherry juice increases sleep time and efficiency in older adults with insomnia, potentially due to its inhibition of a process that degrades tryptophan and stimulates inflammation.
2018 American Journal of Therapeutics Pilot Study of the Tart Cherry Juice for the Treatment of Insomnia and Investigation of Mechanisms Losso JN, Finley JW, Karki N, Liu AG, Prudente A, Tipton R, et al.
Randomised Controlled Trial Cherry Sleep Tryptophan
The study followed a placebo-controlled balanced crossover design, with subjects older than 50 years old with insomnia being randomized to either placebo or cherry juice consumption twice daily for two weeks, with a two-week washout period in between. Sleep was evaluated using polysomnography and five validated questionnaires, while serum measurements were conducted for several bio-indicators. In vitro studies were also performed to determine the ability of cherry juice components to inhibit a specific physiological process.
The study found that sleep time increased by 84 minutes per polysomnography evaluations and sleep efficiency increased per the Pittsburgh Sleep Quality Index. Serum measurements revealed decreased levels of certain bio-indicators suggesting reduced inflammation. In vitro studies also found that components present in cherry juice inhibited a specific process that degrades the amino acid tryptophan, potentially leading to these improved sleep outcomes. Other questionnaires, however, showed no significant differences in results.
Kiwifruit consumption before bedtime significantly improves sleep quality and daytime function in individuals with chronic insomnia in comparison to pear consumption.
2017 Sleep and Biological Rhythms The effects of kiwi fruit consumption in students with chronic insomnia symptoms: a randomized controlled trial Nødtvedt O, Hansen AL, Bjorvatn B, Pallesen S
Randomised Controlled Trial Kiwifruit Sleep
In the methodology of this study, participants with chronic insomnia symptoms were randomly assigned to consume either 130g of kiwi or pear an hour prior to bedtime daily for a period of 4 weeks. This followed a baseline assessment period of one week. Various outcome measures such as sleep diaries, actigraphy, and several questionnaires were used to evaluate the effects of this dietary change.
The results showed a distinct improvement in sleep quality and daytime functionality in participants who consumed kiwi, as reported in the sleep diaries. However, the objective measures such as actigraphy and certain questionnaires did not show any significant changes. Hence, the research indicates that kiwi might have properties that enhance sleep, especially in people dealing with chronic insomnia.
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