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July 23, 2014The Journal of Alternative and Complementary Medicine

Smelling fresh roses increases parasympathetic nervous activity and comfortable feelings compared to air.

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Why the study?

Does olfactory stimulation by fresh rose flowers improve heart rate variability and subjective feelings in female university students?

Population

19 female university and graduate students (mean age 21.6 years, range 19.0-26.0 years) in Japan.

Comparison

Olfactory stimulation by fresh rose flowers vs Air as a control

Design

Other

Key result

Olfactory stimulation by fresh rose flowers induced a significant increase in parasympathetic nervous activities and an increase in comfortable and natural feelings compared to air.

Authors

MIMiho IgarashiCSChorong SongHIHarumi Ikei

Discussion

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Member takes

Overview

May support relaxation in healthy young women; leaves open effects on clinical populations or cardiovascular outcomes.

Structured PICO

Does olfactory stimulation by fresh rose flowers improve heart rate variability and subjective feelings in female university students?

P
Population
19 female university and graduate students evaluated for physiological and psychological responses to olfactory stimulation.
I
Intervention
Olfactory stimulation by fresh rose flowers
C
Comparator
Air as a control
O
Outcome
Heart rate variability (high-frequency and low-frequency components)surrogate

Olfactory stimulation with fresh rose flowers may induce physiological and psychological relaxation by increasing parasympathetic nervous activity.

Cite This Study

Igarashi et al. (2014) studied this question. Olfactory stimulation by fresh rose flowers vs. Air was evaluated on Heart rate variability and subjective evaluations. Olfactory stimulation by fresh rose flowers induced a significant increase in parasympathetic nervous activities and an increase in comfortable and natural feelings compared to air.

synapsesocial.com/papers/6aa398ecaaaedccdac74947bhttps://doi.org/10.1089/acm.2014.0029
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Also Consider

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  1. 1Autonomic nervous function and localization of cerebral activity during lavender aromatic immersion2007 · 50 citations
  2. 2Heart Rate Variability Sensing Can Reveal Characteristic Autonomic Modulation via Aromatherapy in Relation to the Effects on Feeling: A Study on Citrus Aurantium Oil and Rose Water2025
  3. 3Non-contact neuromodulation of the human autonomic nervous system function via different odors: Sex, menstrual cycle, and odor dose- and duration-specific effects2022 · 3 citations
  4. 4Human heart rate variability under the influence of aromatherapy with sweet orange and pine oils2023
  5. 5Effect of olfactory stimulation from aromatherapy on the autonomic nervous activity during aerobic exercises2023