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- Yawn - Wikipedia
A yawn is a reflex in vertebrate animals characterized by a long inspiratory phase with gradual mouth gaping, followed by a brief climax (or acme) with muscle stretching, and a rapid expiratory phase with muscle relaxation, which typically lasts a few seconds [2][3] For fish and birds, this is described as gradual mouth gaping, staying open
- Why Do We Yawn? - WebMD
Yawning is a common reflex in which you open your jaw wide, take a deep breath, and then quickly breathe out It lasts about 4-7 seconds and often happens when you're waking up or falling asleep
- Yawning Definition Causes - Cleveland Clinic
Yawning is the opening of your airway and mouth to take a long, deep breath of air It’s a complex muscular movement In seconds, your entire airway fully dilates (expands) And surrounding muscles powerfully stretch or tense, most significantly around your throat (pharynx) Another term for yawning is oscitation
- The Science of Yawning: Why Do We Yawn and What Does It Mean?
Yawning is the involuntary action that makes our jaw go wide and the exhalation of the deep breath we take in while our mouth is open Yawns are more likely to occur in moments of tediousness or drowsiness If you see, hear, think about, or even read about it, it will trigger an urge to yawn
- Reasons We Yawn: Why Is This Reflex Contagious? - Verywell Health
Yawning is considered "contagious" because when you see someone else yawn, it often stimulates you to yawn, too This article explains the theories and reasons behind yawning and why it can be contagious Yawning occurs as early as 12 weeks of fetal life It is mostly involuntary, and when it begins, it cannot be suppressed
- Why Do We Yawn and Is it Contagious? - Cleveland Clinic Health Essentials
Yawning is an involuntary opening of the mouth to take a deep breath We likely yawn to help regulate our brain’s temperature and yes, yawns can be contagious
- Yawning: Causes and reasons for contagious yawning
A yawn is an involuntary reflex that involves opening the mouth wide and taking in a deep breath, followed by a slow exhale Several theories exist about why we yawn, but researchers have not
- Why Do We Yawn? Science Explains
Science explains the reasons why we yawn, whether animals yawn too, and how contagious yawning works Also, sometimes it signals illness
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