Feeling stressed out? Simply smell your partner's shirt

For the study published in the Journal of Personality and Social Psychology, the researchers recruited 96 opposite-sex couples.

Feeling stressed out? Simply smell your partner's shirt
(Representational image)

New Delhi: If you're looking for effective stress-busters, especially if you're married or in a relationship, then your search ends right here.

A study has suggested that your partner's mere scent – even without their physical presence – is good and powerful enough to help you reduce your stress.

While being exposed to a stranger's scent had the opposite effect and raised levels of the stress hormone, cortisol, researchers said.

"Many people wear their partner's shirt or sleep on their partner's side of the bed when their partner is away, but may not realize why they engage in these behaviors," said Marlise Hofer, from the University of British Columbia in Canada.

"Our findings suggest that a partner's scent alone, even without their physical presence, can be a powerful tool to help reduce stress," Hofer said.

For the study published in the Journal of Personality and Social Psychology, the researchers recruited 96 opposite-sex couples.

Men were given a clean T-shirt to wear for 24 hours and were told to refrain from using deodorant and scented body products, smoking and eating certain foods that could affect their scent. The T-shirts were then frozen to preserve the scent.

The women were randomly assigned to smell a T-shirt that was either unworn or had been worn by their partner or a stranger.

They were not told which one they had been given. The women underwent a stress test that involved a mock job interview and a mental math task, and also answered questions about their stress levels and provided saliva samples used to measure their cortisol levels.

The researchers asked women to act as the "smellers" because they tend to have a better sense of smell than men.

They found that women who had smelled their partner's shirt felt less stressed both before and after the stress test.

Those who both smelled their partner's shirt and also correctly identified the scent also had lower levels of cortisol, suggesting that the stress-reducing benefits of a partner's scent are strongest when women know what they are smelling.

Meanwhile, women who had smelled a stranger's scent had higher cortisol levels throughout the stress test.

"From a young age, humans fear strangers, especially strange males, so it is possible that a strange male scent triggers the 'fight or flight' response that leads to elevated cortisol," said Hofer.

"This could happen without us being fully aware of it," Hofer added.

(With PTI inputs)

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