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  Sleepwalking might be caused by genes
Updated 14 February 2003, 16.37
Boy sleeping
Scientists have discovered more about sleepwalking - which means they might be able to come up with a cure.

About half of all young children sleepwalk and 3% of adults do, too.

Fact File
Sleepwalking
It's very hard to wake a sleepwalker
Sleepwalkers can't hear you if you speak to them
It runs in families
You should guide a sleepwalker gently back to bed

Now scientists have found that people who sleepwalk are much more likely to have a genetic marker called HLA-DQB1.

It's not actually a 'sleepwalking gene' but it could have something to do with the cause.

But because sleepwalking's a complicated condition they need more research before a treatment is found.

Sleepwalking is usually quite harmless - but sometimes people fall or bump into things and hurt themselves.

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