One of the basic facts of human existence is that throughout our lives, our cells continuously divide.
Some cells die, but the division process ensures that new cells take the place of the dead ones. The division process is not perfect, however.
Each instance of cell division causes a small bit of deterioration in the cell and in the DNA of the cell. Over time, these bits of deterioration add up and the result is what we know as the aging process that we can see with our own eyes.
While not exactly constant, this deterioration from cell division occurs at a fixed enough rate that the maximum lifespan is the same for all humans. Scientists have been unable to change this rate of deterioration until now.
A way to reverse it might have been found, reported by the Daily Mail in "Would YOU choose to live forever? Age-reversing pill that NASA wants to give to astronauts on Mars will begin trials within six months."
If the report is true and trials bear out, then scientists have found a drug that can reverse the deterioration from cell division that causes aging.
This would have potential benefits for astronauts because space travel is extremely dangerous.
Astronauts are exposed to radiation that causes the cell deterioration to increase.
NASA is interested in this drug as a possible way to protect astronauts on a trip to Mars.
If this drug actually works, it has profound implications for more than just space travelers. It would cause great changes for all elderly people and for all estate planners.
Reference: Daily Mail (March 23, 2017) "Would YOU choose to live forever? Age-reversing pill that NASA wants to give to astronauts on Mars will begin trials within six months."