Martha Beck explains the fight-or-flight reflex.

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Dr. Oz calls on friend and colleague Martha Beck to help solve the underlying problems that cause Wendie and Tony to turn to cigarettes. Martha says their addictions are the result of fight-or-flight reflexes that need to be turned off.

"The reason that explosive quality is in your house and you're always thinking about running is because trauma in childhood has put you in a permanent fight-or-flight state," she says. "Smoking calms you down. So if you take away the smoking, take away any other substance, you have no way of calming down. It's like you're a deer caught in a cage with a live tiger all the time."