Since the dawn of time, humans have wanted to live longer lives. As medical science has improved, humans have indeed extended their average lifespan.

Much of this increased longevity is due to reduced levels of infant mortality, better sanitation and public health, vast improvements in the treatment of many diseases, and vaccination.

Aside from the treatment and prevention of disease, many researchers are still picking away at the mechanisms beneath the aging process itself.

Over time, cells slowly become less active and eventually stop dividing. These are known as senescent cells. They are partly to blame for our slow but inevitable decline as we grow older.

Recently, scientists from the University of Exeter in the United Kingdom discovered a way to reverse an important aspect of aging in human cells.

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