Everybody knows that every individual on Earth can die once and only once in their lifetime without consequence. Their body and mind will return to however it was right before the death. If somebody were to sustain damage over time to the point that they would eventually die, they would return to the state before beginning to take damage. Disease works the same - if the disease would inevitably kill the body, the individual would return to the state before the beginning of the disease.

What would you do with this information?

How do you think society would act knowing this information?

EDIT: Nobody is answering the first question - the question I feel is more interesting - and I don't know why.

What would you, personally, do with this information?