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Hello, this is Six Minute English, I'm Georgina.
And I'm Rob.
What do you do when you're tired, Rob?
Oh, well, I go to bed.
Before that, I clean my teeth.
But what does your body do to tell you you're tired?
Right, well, these days, I just kind of fall asleep in front of the TV.
Yes, but okay, what am I doing now?
Oh, yes, hang on, yes, you set me off.
Yawning.
Yes, yawning is a sign that we're tired or bored.
Are you tired or bored now?
No, not particularly.
So why did you just yawn?
Well, because you did.
That's the thing about yawns.
They are contagious.
They can spread from one person to another.