An example of life span is the 80 years that you may live between birth and death.
Fad diets only tend to have a life-span of a couple of weeks at most.
The game.com is now a collector's item since Hasbro stopped making games many, many years ago (I believe the life-span of the system was just over a year).
They have a life span of 60,000 hours compared to about 30,000 hours for plasma TVs.
Which of you by being anxious is going to add a single cubit to his life span?
lengthen the life span of nematode worms.