Warm Steam Inhalation before Bedtime Improved Sleep Quality in Adult Men
Joint Authors
Ichiba, Tomohisa
Kakiuchi, Kenta
Suzuki, Masahiro
Uchiyama, Makoto
Source
Evidence-Based Complementary and Alternative Medicine
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-08-25
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
In humans, the inhalation of warm steam has been reported to decrease the respiratory rate.
However, the effects of warm steam inhalation on sleep have not been studied closely.
This study aimed to examine the effects of warm steam inhalation before bedtime on subsequent sleep quality.
The participants included 17 adult men with mild sleep difficulties and anxiety.
All experiments were conducted in the participants’ homes.
The participants were instructed to wear a warm steam-generating mask or sham mask over the nose and mouth for 15 minutes immediately before habitual bedtime and were then allowed to sleep until their habitual waking time.
The functional mask provided approximately 600 mg of steam for 10 minutes and maintained an interior temperature of 38–40°C for 15 minutes.
We evaluated the participants’ electrocardiograms and subjective moods while wearing the mask.
During sleep, electroencephalograms (EEGs) were recorded using a single-channel portable device.
In the morning, each participant was instructed to report their sleep details subjectively using a visual analog scale.
At bedtime, the subjects’ subjective apprehension of the next day was reduced significantly under steam inhalation, compared with the sham condition.
Compared to the sham condition, steam inhalation before bedtime was associated with a higher EEG delta power density during the first third of sleep episodes and better subjective sleep quality in the morning.
These results suggest that safe and easy inhalation of warm steam via a steam-generating mask improves psychological relaxation and sleep.
American Psychological Association (APA)
Ichiba, Tomohisa& Kakiuchi, Kenta& Suzuki, Masahiro& Uchiyama, Makoto. 2019. Warm Steam Inhalation before Bedtime Improved Sleep Quality in Adult Men. Evidence-Based Complementary and Alternative Medicine،Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1148942
Modern Language Association (MLA)
Ichiba, Tomohisa…[et al.]. Warm Steam Inhalation before Bedtime Improved Sleep Quality in Adult Men. Evidence-Based Complementary and Alternative Medicine No. 2019 (2019), pp.1-7.
https://search.emarefa.net/detail/BIM-1148942
American Medical Association (AMA)
Ichiba, Tomohisa& Kakiuchi, Kenta& Suzuki, Masahiro& Uchiyama, Makoto. Warm Steam Inhalation before Bedtime Improved Sleep Quality in Adult Men. Evidence-Based Complementary and Alternative Medicine. 2019. Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1148942
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1148942