Gwyneth Paltrow's guide to yawning

What would we do without Gwynnie? Not only has she taught the world to cook an egg but she has now explained how to yawn properly

From suncream to bed-making, the internet is full of advice on mundane endeavours which you have apparently been "doing wrong" your whole life.

And you've been doing yawning wrong too, according to Gwyneth Paltrow.