Saturday, April 18, 2015

Research shows old age is getting younger all the time...

In 1985, American Richard Bass accomplished an amazing feat. He had set for himself the task of climbing the world’s highest mountains in all seven continents. In that year, at age 55, he completed the climb of the last of his seven mountains, Mt Everest and in doing so became the first person to climb all seven mountains and the oldest person ever to successfully climb Mt Everest.

But now Mr Bass’s record has been eclipsed.

The oldest person to climb Mt Everest is Yuichiro Miura of Japan, who reached the summit of Mt Everest in 2013 at age 80. And the oldest person to have climbed all seven mountains in seven continents is Takao Arayama of Tanzania who climbed the last of those mountains at age 74 in 2010.

Over time, as life expectancy increases and people become healthier, older people can do things which were previously the domain of those younger. Indeed, no one would be surprised if, within the next decade, both the above records were broken.

Well, perhaps not exactly no one.

People who analyze population aging using conventional measures assume that none of the attributes that are important for understanding aging change over time or differ in localities. But a wide variety of attributes can be used to study aging. An important one for 65-year-olds, for example, is their projected remaining life expectancy. Another one is how well those 65-year-olds can remember things. Full story...

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