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- Yawning in humans can be caused by various factors12345:
- Tiredness
- Waking up
- Boredom
- Stress
- Imitating a yawn
- Increasing oxygen to the brain, organs, and tissues
- Helping stay awake
- Relieving inner ear pressure
- Regulating body temperature
- Contagious response to seeing others yawn
- Sleepiness
- Medications and medical conditions
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.Evidence suggests that tiredness is the most common trigger of yawning. Other triggers include: Waking up. It’s common to stretch and yawn at the same time when you wake up. Boredom. Certain stressful events. For example, athletes tend to yawn before a game. Imitating a yawn (which triggers a “real” yawn).my.clevelandclinic.org/health/body/yawningThere are several theories as to why people yawn. These include increasing oxygen to the brain, organs, and tissues, helping you stay awake, relieving inner ear pressure, and regulating body temperature. Yawning is also contagious, though researchers don't fully understand why people yawn in response to seeing other people yawn.www.verywellhealth.com/why-do-we-yawn-7966527Sleepiness, stress, and boredom are associated with yawning. Anecdotal reports indicate yawning can help increase alertness, helping to fight off fatigue or increase performance when a person is nervous or stressed. Yawning often accompanies any change in the state of the body that affects neurotransmitters.sciencenotes.org/yawn-science-explains/Yawning is an automatic body response to tiredness or stress. Less commonly, excessive yawning can also be a sign of an underlying health condition. It can be related to the vagus nerve, sleep problems, medication, and more.www.medicalnewstoday.com/articles/324401Researchers have proposed many reasons for yawning. They can be categorized as physiological reasons and psychological reasons. In either case, the underlying stimulus alters neurochemistry to elicit the response. Medications and medical conditions can affect the rate of yawning.www.thoughtco.com/why-do-we-yawn-4586495 - People also ask
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