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The estimates could change though, and the life expectancy figures are for populations - they do not mean that each individual person will live into old age.

While dementia is often seen as a disease of old age, about 5% of people with dementia are classed as having young-onset dementia.

At the grand old age of 28 her keepers say she has reached the stage in her life when she needs geriatric care.

Approaching old age, Hudson and his wife returned to the Hudson River Valley.

Survivorship curves show female right whales can live to very old ages, but humans are causing North Atlantic right whales to die well short of their potential.