Several medical officials across the world have warned people to avoid touching their face as a key way to prevent the spread of coronavirus.

Often when issuing the warning, they've gone on to - you guessed it - put their hands on their face.

But why do we touch our faces in the first place? And is it that easy to just stop doing it all of a sudden?

We spoke to psychologist Natasha Tiwari.

Video by Megan Fisher and Anna Boyd.

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