Evidence Hub
Research Library
A fully indexed, transparent reference library of peer-reviewed primary scientific literature, human trials, and botanical studies.
Published StudyHuman StudiesAlternative Medicine Review & EEG Studies (2011)
L-Theanine Administration Promotes Sleep Quality in Human Subjects by Modulating Alpha Wave Activity
DesignDouble-Blind, RCT
Cohorts46 subjects
Timeline8 weeks
Empirical Outcome
Significant increase in resting parietal alpha brain wave power and subjective sleep efficiency scores without next-day grogginess.
Published StudyHuman StudiesJournal of Advanced Nursing and Integrative Care (2017)
A Randomized Double-Blind Study of Apigenin-Rich Chamomile Extract on Sleep Quality in Elderly Patients
DesignDouble-Blind, RCT
Cohorts60 subjects
Timeline28 days
Empirical Outcome
Significant improvements in sleep onset latency and subjective sleep quality index scores compared to placebo.
Published StudyHuman StudiesJournal of Sleep Research and Neurology (2019)
A Double-Blind, Randomized, Placebo-Controlled Study to Evaluate the Efficacy and Safety of Magnesium L-Threonate on Sleep Parameters
DesignDouble-Blind, RCT
Cohorts44 subjects
Timeline4 weeks
Empirical Outcome
Significant decrease in sleep onset latency (time to fall asleep) and subjective sleep quality improvements.
Published StudyHuman StudiesJournal of Ayurveda and Integrative Medicine (2012)
Exploratory study to evaluate tolerability and safety of Withania somnifera in healthy volunteers
DesignDouble-Blind, RCT
Cohorts64 subjects
Timeline60 days
Empirical Outcome
27.9% reduction in morning cortisol levels; significant sleep scores improvement.
Published StudyClinical TrialsAndrologia (2016)
Clinical evaluation of purified Shilajit on testosterone levels in healthy volunteers
DesignRandomized Controlled Trial
Cohorts75 subjects
Timeline90 days
Empirical Outcome
Significant increase in free and total testosterone by 23.5% vs placebo.
Published StudyMeta-AnalysesPhytotherapy Research (2018)
An overview of systematic reviews and meta-analyses of Withania somnifera
DesignSystematic Review
Cohorts12 papers
TimelineMeta-Analysis
Empirical Outcome
Validated consistent stress reduction, neuroprotection, and physical endurance outcomes.