answersLogoWhite

0

What does yawnful mean?

User Avatar

Anonymous

13y ago
Updated: 12/2/2022

A yawn is a reflex consisting of the simultaneous inhalation of air and the stretching of the eardrums, followed by an exhalation of breath.Its main purpose is to increase oxygen to the circulatory system and the brain.It can also indicate sings like lack of sleep or boredom.Yawning excessively may also occur in the presence of a heart defect or disease.

User Avatar

Demetris Boehm

Lvl 10
2y ago

What else can I help you with?