Is this the secret of eternal life?

"Every day, she takes NGF in the form of eye drops," he said, "but I can't say for sure if this is her secret. At the start, it seemed this molecule's effect was restricted to acting on the peripheral nervous system, but then it emerged that it has a very important role in the brain. Contrary to what was believed, the brain does not have a rigid structure but is in continuous movement, and NGF helps neurons – which we begin to lose between 10 and 15 years old – survive."