Establishment of a Japanese essential oil and yuzu aromatherapy to improve human energy metabolism and sleep quality.

Establishment of a Japanese essential oil and yuzu aromatherapy to improve human energy metabolism and sleep quality. - Establishment of a Japanese essential oil and yuzu aromatherapy to improve human energy metabolism and sleep quality.

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000061509

Enrollment

Registered

2026-05-10

Start date

2025-07-28

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Adult

Interventions

For two weeks, inhale water vapor before going to bed and while sleeping. For two weeks, inhale yuzu fragrance components before going to bed and while sleeping.

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: Persons with no health problems Persons with no sleep problems

Exclusion criteria

Exclusion criteria: Smoker Shift worker Person with a food allergy to yuzu

Design outcomes

Primary

Measure	Time frame
Energy metabolism (energy expenditure, respiratory quotient, fat oxidation, carbohydrate oxidation)	—

Secondary

Measure	Time frame
Serum free fatty acids, hormone secretion, serum metabolites, urine metabolites, sleep EEG, body temperature, heart rate, autonomic nervous activity, gene expression in leukocytes and blood glucose	—

Countries

Japan

Contacts

Public ContactKatsuhiko Yajima

Josai university Faculty of Pharmacy

k-yajima@josai.ac.jp049-271-8015

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026