If you sleepwalk, your kids may do it too.
A new study suggests sleepwalking may be genetic, with parents passing along some yet unidentified gene.
Compared to children with no family history of sleepwalking, children with one parent who had ever been a sleepwalker were three times more likely to sleepwalk themselves. And if both parents had a history of sleepwalking, the child was seven times more likely to be a sleepwalker.
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