Does yawning play a role in nonverbal cues?

In Stock

Size Guide

$34.99 $29.99

Shipping and Returns Policy

Yawning more than once a minute could signify a serious medical condition, such as chronic sleep deprivation resulting from insomnia or sleep apnea. Aug 11, 2014 ... “In my view the most likely signalling role of yawning is to help to synchronize the behaviour of a social group – to make them go to sleep more ... Jul 17, 2018 ... There is no scientific consensus on why we yawn. One theory argues that when humans are tired, we stop taking deep breaths, which causes a build ... Feb 1, 2024 ... It is normal for healthy people to yawn several times throughout the day, but yawning more than 30 times a day is generally considered excessive. Jul 14, 2023 ... Excessive yawning can often be a sign of insufficient sleep or chronic fatigue. When the body is deprived of restorative rest, it seeks to ... Physiological yawning can occur during the transition between wakefulness and sleep or vice versa, or in response to fatigue, tiredness, stress, overwork, lack ... Yawning is a highly conserved neurophysiological adaptation among vertebrates. The detection of yawning appears to be biologically important in social species. Jun 27, 2024 ... Other Medical Conditions. Other excessive yawning causes include Liver failure, brain tumors, and certain infections. When a Yawn Is More Than ... A Scientists have discovered one possible reason humans yawn. Studies ... D Many species yawn, but the purpose served by yawning is still unknown. It ... Feb 22, 2019 ... Reading about yawning makes people yawn. You are probably yawning right now ... Is there a purpose to a yawn? I know it means you're sleepy, but ...
  • Next Day Delivery by USPS Find out more

    Order by 9pm (excludes Public holidays)

    $11.99

  • Express Delivery - 48 Hours Find out more

    Order by 9pm (excludes Public holidays)

    $9.99

  • Standard Delivery $6.99 Find out more

    Delivered within 3 - 7 days (excludes Public holidays).

  • Store Delivery $6.99 Find out more

    Delivered to your chosen store within 3-7 days

    Spend over $400 (excluding delivery charge) to get a $20 voucher to spend in-store
  • International Delivery Find out more

    International Delivery is available for this product. The cost and delivery time depend on the country.

You can now return your online order in a few easy steps. Select your preferred tracked returns service. We have print at home, paperless and collection options available.

You have 28 days to return your order from the date it’s delivered. Exclusions apply.

View our full Returns and Exchanges information.

Our extended Christmas returns policy runs from 28th October until 5th January 2025, all items purchased online during this time can be returned for a full refund.

No reviews yet. Only logged in customers who have purchased this product may leave a review.