Does life expectancy vary by life?

It truly does. Each person has experienced different things in life and have lived through different things. Some people or living things are born with different problems as well. Another thought is that we don't exactly know how we will die. Some die at a young age. It could be from a car accident, cancer, or anything. There are a lot of factors that influence life expectancy. Each country will have a different life expectancy. A good example would be that third world countries have a lower life expectancy based on the hardships it experiences. Like I have said, there are many things that affect life expectancy.