Universal Ramblings

If a human brain were to be hooked up to a synthetic body, how many years could that person last? Even if they kept up with upgrades and replacement parts for their new physique, is there a limit to how long the human brain can function normally? Even if all brain diseases are cured, would the mind eventually break down?

I've read that we get old because of limitations in our cellular makeup. Basically, the DNA or something can only divide so many times before it doesn't have the ability to copy itself any longer. That happens for many different types of cells, and eventually the groups of cells that have stopped replenishing themselves have bigger and bigger problems. This contributes to aging.

Cancer cells can divide indefinitely. Can cells of the brain divide at all?

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