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The oldest known age ever attained was by Jeanne Calment, a Frenchwoman who died in 1997 at the age of 122. Ms. Calment is also the only documented case of a person living past 120, which many scientists had pegged as the upper limit of the human lifespan.

While some researchers contend that a natural limit sits around 120, 140, or 150 years, others speculate that a limit doesn't exist—and that aging doesn't necessarily lead to death.

Humans may not have reached a maximum lifespan yet — people could soon live to 120 and beyond. A new mathematical model suggests human beings might not have reached our 'maximum age' yet. But scientists still think it's going to be hard for most superagers to live past 115.

Humans' life expectancy (average) is 70-85 years. However, the oldest verified person (Jeanne Clement, 1875-1997) lived up to 122 years. As a person ages, the telomeres (chromosome ends) tend to become shorter in every consecutive cycle of replication. Also, bones start getting weaker by reducing in size and density.

The Social Security Administration's middle-range forecasts indicate that in 2050 e(0) will be 80.0 and 83.4 years for males and females, respectively (table 2). The Census Bureau (CB) forecasts that in 2050 e(0) for males and females will be 80.9 and 85.3 years, respectively.

Only a handful of these centenarians, less than one in a thousand, will reach 110. People who live beyond this age, the “supercentenarians”, are rare exceptions.

On average, middle-aged people today can expect to live 120 years; the elderly can expect to live to 100; and younger people can expect to live beyond 120 years.” In recent analysis [1], the United Nations said there are now some 573,000 centenarians on the planet, with that figure set to rise to 3.7million in 2050.

To measure aging we must follow one or more cohorts of individuals over time, recording at regular intervals (census intervals) the numbers of dead individuals and their age at death, until all individuals have died. The times it takes individuals to die ("failure times") represent our raw data.

The oldest known age ever attained was by Jeanne Calment, a Frenchwoman who died in 1997 at the age of 122. Ms. Calment is also the only documented case of a person living past 120, which many scientists had pegged as the upper limit of the human lifespan.

While some researchers contend that a natural limit sits around 120, 140, or 150 years, others speculate that a limit doesn't exist—and that aging doesn't necessarily lead to death.

Humans may not have reached a maximum lifespan yet — people could soon live to 120 and beyond. A new mathematical model suggests human beings might not have reached our 'maximum age' yet. But scientists still think it's going to be hard for most superagers to live past 115.

Humans' life expectancy (average) is 70-85 years. However, the oldest verified person (Jeanne Clement, 1875-1997) lived up to 122 years. As a person ages, the telomeres (chromosome ends) tend to become shorter in every consecutive cycle of replication. Also, bones start getting weaker by reducing in size and density.

The Social Security Administration's middle-range forecasts indicate that in 2050 e(0) will be 80.0 and 83.4 years for males and females, respectively (table 2). The Census Bureau (CB) forecasts that in 2050 e(0) for males and females will be 80.9 and 85.3 years, respectively.

Only a handful of these centenarians, less than one in a thousand, will reach 110. People who live beyond this age, the “supercentenarians”, are rare exceptions.

On average, middle-aged people today can expect to live 120 years; the elderly can expect to live to 100; and younger people can expect to live beyond 120 years.” In recent analysis [1], the United Nations said there are now some 573,000 centenarians on the planet, with that figure set to rise to 3.7million in 2050.

To measure aging we must follow one or more cohorts of individuals over time, recording at regular intervals (census intervals) the numbers of dead individuals and their age at death, until all individuals have died. The times it takes individuals to die ("failure times") represent our raw data.