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Scientists Figuring Out How To Zap Away Cravings

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MIAMI (CBSMiami) — Imagine how easy it would be to lose weight if you never had a food craving again.

That could soon be a reality as researchers are working on a way to reprogram the brain with electrical pulses.

"You just have to turn it off, but most people tend not to and just keep feeding the craving," Dr. Lisa Ganjhu said.

Experts say it is a vicious cycle that is not unlike other addictions, the more that you give in to your cravings the more you crave them.

"Somewhat similar to alcohol, marijuana, people really do get hooked," Dr. Eric Braverman explained.

Doctors know all about cravings. Now, scientists may have a way to stop them by using a device that was originally designed to help stroke victims.

"If we can change brain activity can we change the craving behavior," Dr. Felipe Fregni said.

The device uses a low intensity electrical current that passes through electrodes that placed on both sides of the scalp. The current targets the specific parts of the brain associated with cravings.

After just one single stimulation session, researchers found the desire to eat was diminished when study participants looked at pictures of food.

"They said after stimulation, it was less than before stimulation," Dr. Fregni said.

Watch Vanessa Borge's Report

Right now, the effect is only temporary, but scientists are studying how to make it permanent.

"Your brain learns. The challenge is how to unlearn the mal-adoptive behavior and learn a new behavior," said Dr. Fregni.

They are also researching the use of electrical stimulation with other addictive substances including cigarettes, alcohol and even drugs.

The technology is also being used for rehabilitation. Jamie Heath, 13, suffered a stroke last year. After a week of brain stimulation, she said she has better use of her right arm. Heath said while it may sound scary, the actually treatment isn't painful.

"It feels like tingling, like I want to scratch my head but I know I can't," said Heath.

Dr. Fregni said one day patients may be able to keep a portable device at home which they would operate themselves to reduce their own cravings.

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