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High-Tech Ways to Extend Your Life

Dr. Oz shows Oprah how doctors are growing new body parts in laboratories.
Dr. Oz says he's amazed by what's happening at the Wake Forest Institute of Regenerative Medicine. "I didn't realize how far we'd come," he says. "I mean huge advances."

Dr. Oz says that to build new body parts doctors have to start with a mold. "Then, it's seeded with live cells," Dr. Oz says. "It goes into an incubator where the cells multiply and grow."

This is especially helpful for patients who are on donor waiting lists or whose organs have been destroyed by cancer. For instance, if you need a bladder transplant, Dr. Oz says doctors can build a replacement bladder using your cells in as little as eight weeks.

Regenerative medicine can also be used to make everything from ears to livers.

"You used to read about this in science fiction and couldn't even imagining it happening," Oprah says. "This is unbelievable."