The REAL Reason You YawnUntitled design

追加: 2026-05-28

[00:00:00]Yawning may help [music] cool your brain and keep you alert.

[00:00:04]When you're tired, your brain temperature rises.

[00:00:07]>> [music] >> Yawning brings in cool air and increases blood flow.

[00:00:13]And contagious yawning [music] may be linked to empathy.

[00:00:17]Even hearing the word yawn can trigger it.

[00:00:20]Follow for daily medical facts.