The average lifespan of people in the United States of America is 70 years. Life spans of people belonging various different regions in the world happen to be different. In china and japan, people tend to have longer lifespans ranging as long as 90 years and sometimes more.
Similarly, people in the Asian subcontinent have lifespans that lie in between the 60 – 80 range. A person’s lifespan is largely determined by his/her surroundings, the lifestyle, and the amount of healthy choices that one makes. Genetic/natural diseases do play a part in lowered lifespans, but one can still approximate an average value by considering the other factors.