A new study suggests there may be a limit to how long people can live. American researchers found that the longest a human being can live is about 115 years. The researchers are with the Albert Einstein College of Medicine in New York City. Their findings were published in the journal Nature. The study was based on mortality and population records from the Human Mortality Database. The database has a collection of records from more than 40 countries dating back to 1900. The researchers found that the average life expectancy has risen greatly since the 19th century. This has resulted partly from developments in modern medicine, including the use of vaccines, antibiotic drugs and improved treatments for cancer and heart disease.
What does mortality mean?
to be immune from all diseases
to live forever
the number of births in a given period
the number of deaths that occur in a particular time or place
What is the longest period of time a human can live according to scientists?
90 years
115 years
100 years
99 years
The researchers found that the average life expectancy has risen greatly since the 19th century.
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