What causes cells to age?

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Scientists recently discovered an unexpected role for a protein they associate with premature aging. They showed that it is a master regulator of cellular senescence and argue its loss leads to normal aging.

Aging is an inevitable part of our lives. But an increasingly aging population poses public health challenges.

According to the Centers for Disease Control and Prevention (CDC), the number of people in the United States aged 65 years and older will reach around 71 million in the next 10 years.

But what actually happens when we age? Scientists are working on a number of theories.

Full story at Medical News Today

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