Scientists from City St George’s, University of London created a terrifyingly realistic android head to determine whether ...

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 ...

First, yawning increases blood flow to the brain and enhances blood flow back to the heart. Second, the deep inhalation of air during a yawn is thought to cool blood in vessels in the nose and mouth.

Yawning is a reflexive action characterized by a deep inhalation by opening the mouth, followed by a short exhalation. It is an involuntary process, that we all encounter once in a while.

2. Oxygen Intake. According to Dr Srivastav, yawning improves alertness and cognitive function by raising blood oxygen levels and releasing carbon dioxide.

Some fishes and sharks yawn just after they’ve eaten. The stretching of the mouth and extension of the bones appears to be a way for them to re-position their jaws. They also yawn in the presence of ...

Yawning is an involuntary action that may help regulate brain temperature, increase oxygen intake, and improve alertness. It is also contagious, linked to empathy and social bonding in both humans and ...