2024年3月15日 · 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 …

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 …

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 …

2024年12月12日 · 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 …

The meaning of YAWN is to open wide : gape. How to use yawn in a sentence.

2024年10月21日 · 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, …

2023年4月25日 · 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.

2023年10月10日 · 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 …

YAWN definition: 1. to open the mouth wide and take a lot of air into the lungs and slowly send it out, usually when…. Learn more.

2020年2月5日 · There are many theories as to why people yawn. One popular theory is that yawning helps your body bring in more oxygen. But this theory has been mostly debunked. …