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Noel Schenck started sleepwalking when she was about 4 years old.
"I would go into the refrigerator and open the door, i would come out and wonder around," said noel Schenck, a former sleepwalker.
Sleepwalking is most common in children ages 4 - 8 and usually doesn't require treatment.
Most, like Schenck, outgrow it.
Sleepwalking can be thought of as the state halfway between being fully awake and being fully asleep.
The brain is doing things that it would do in wakefulness but it would never recall them in the future.
Experts aren't exactly sure what causes it.
"We don't know why the young brain seems to get caught in this half wake half asleep circumstance. There are some genetic contributors. We know that if your parents were sleepwalkers, you're more likely to be a sleepwalker," said Dr. David Schulman, director of Emory University's Sleep Laboratory.
If an adult happens to start sleepwalking it's usually because of sleep deprivation, an illness, medications such as sleeping pills or alcohol. Identifying the trigger usually stops the behavior.
How should you handle a sleepwalker?
"It's probably best to try to redirect a sleepwalker back to bed, than to try to shake them awake and ask them what they were doing," said Dr. Schulman.
Schenck has two children and is making her house safe now, in case they follow in her footsteps, and start walking in their sleep.
"We reinstalled the gate at the top of the stairs," she said.