A teenager who suffers from the sleep illness narcolepsy has had her life transformed by a specially-trained dog.
Kelly Sears, 19, from Chadwell Heath, Essex regularly falls asleep without any warning and is often let with nasty cuts and bruises as she tumbles to the ground.
But the teenager’s life has dramatically improved thanks to a Cocker Spaniel called Theo who has been taught to lick her neck and face until she wakes up.

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