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Your partner’s odour can improve your quality of sleep: Study

Romantic relationships and close physical contact can provide many physical and mental benefits, including a good night’s sleep.

Washington D.C. [USA], Feb 23 (ANI): Your romantic partner’s odour can help you get a sound sleep as revealed by a study. Your significant other’s T-shirt wrapped around your pillow can improve the quality of your sleep regardless of whether or not you are consciously aware that the scent is even present.

The study was published in the journal Psychological Science.

According to Frances Chen, a researcher at the University of British Columbia, Vancouver, and co-author on the paper, “A growing body of evidence has shown that close relationships are essential to our health and well being, but far less is known about the role of scent in relationships and social support processes. The current study provides new evidence that the mere scent of a romantic partner improves sleep efficiency.”

Previous research has shown that romantic relationships and close physical contact can provide many physical and mental benefits, including aiding in a good night’s sleep. Other research has shown that scents can have profound and evocative effects on the brain. What has not yet been clearly demonstrated is a direct connection between the two.

Chen and graduate student Marlise Hofer set out to investigate this intersection and to understand how romance, scent, and sleep interact.

Chen and Hofer began their research by asking one member of a heterosexual couple in a long-term (three or more months) relationship to wear a plain cotton Tshirt for 24 hours. During this time, the wearer was to avoid typical scentproducing behaviours, like eating spicy food or doing vigorous exercise. They were also told to avoid perfume, cologne, and antiperspirants. The T-shirt was then hermetically sealed and frozen .

Afterwards, the second member of the couple was given two identical shirts, one previously worn by their partner and another that either had been previously worn by a stranger or was scent-free When a participant used their partner’s worn, scent-bearing T-shirt as a pillowcase, they experienced an average of over nine additional minutes of sleep per night.

This equates to more than one hour of additional sleep per week, achieved without spending any more time in bed. The increase was due to participants sleeping more efficiently, meaning they spent less time tossing and turning. Sleep efficiency was measured using a wrist-worn sleep monitor that tracked movement throughout the night

Participants also gave self-reported measures of sleep quality each morning, which increased on nights they thought they were sleeping with their partner’s scent

“The effect we observed in our study was similar in magnitude to that reported for melatonin supplements–a commonly used sleep aid. The findings suggest that the scent of our loved ones can affect our health in powerful ways,” noted Hofer.

This research suggests that simple strategies such as taking a partner’s scarf or shirt along when travelling may have measurable effects on our sleep. Future research might determine if the scent of a romantic partner has additional health benefits beyond the domains of stress and sleep. (ANI)

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