The anticipated length of a person's life could be called the lifespan of that person.
lifespan
the amount of time between a persons birth and a persons death
Another term for the anticipated length of a person's life is "life expectancy."
an author
can improve a persons personal life.
lifespan
If you recall lessons that help you through life; don't ever touch another persons' stuff, especially another man's wife.
An account of somebody's life written by another person is called a biography.
No. But you could only rip out your heart and put it in another persons body.
they can be confident and then people might see another side of them
Biographical
Someone who is happy with their life, an achievement, or another persons achievement.