Your heart rate can rise as much as 30% during a yawn.

Your heart rate can rise as much as 30% during a yawn. is a Health Fact in the Health Facts category.

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380 days ago

yaaaaaaaawwn

i actually yawned when i read this! lol

325 days ago

Anonymous

Me Too!

324 days ago

Yawning

Same here!

300 days ago

Anonymous

My God, I see a pattern! Happened to me, too..

283 days ago

Shai

I was mid-yawn when I read this. Then I stopped.

253 days ago

babee

ME TOO!!

174 days ago

sasha

i dont feel tired at all but i yawned when i read this