14/08/2014 16:58 BST | Updated 20/05/2015 10:12 BST

Group Selfies Cause Spread Of Nits In Teens, Says Expert

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Hispanic boy with hand in hair

If you've been experiencing an itchy head just lately, it might be because you've been taking part in a group Selfie.

A expert says the phenomenon of putting our heads together to crowd into a mobile phone shot is causing an increase in the spread of nits – especially amongst teenagers.

Head lice specialist Mary McQuillan, from California, said: "I've seen a huge increase of lice in teens this year.

"Typically it's younger children I treat, because they're at higher risk for head-to-head contact.

"But now, teens are sticking their heads together every day to take... pictures."

But not everyone agreed with this theory.

Dr Richard J Pollack, from the Harvard School of Public Health said: "This is a marketing ploy, pure and simple."

Still, I bet you're scratching your head right now, aren't you?

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