The new tests, however, are more sensitive and can detect cellular damage within hours.

可是，新试验更敏感，能在几小时内测出细胞损伤。

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He describes aging as the lifelong accumulation of various types of molecular and cellular damage throughout the body.

他把衰老描述为周身各种分子和细胞的损伤在一生中的累积。

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Dr DE Grey describes aging as the life-long accumulation of various types of molecular and cellular damage throughout the body.

他把衰老形容为人体各处多种分子与细胞损伤的终生累积过程。

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Existing lines of inquiry into prolonging lifespan are based either on removing the Hayflick limit, which would have all sorts of untoward consequences, or suppressing production of the oxidative chemicals that are believed to cause much of the cellular damage which is bracketed together and labelled as senescence.

ECONOMIST: A way to counteract part of the process of growing old

Damage that occurs at the cellular or molecular level can disrupt the body's natural control processes and allow an uncontrolled growth of cells, or cancer.

WSJ: Radiation's Effect Depends on Amount

Much of the damage looks like the result of oxidation by free radicals (oxygen-rich compounds released during cellular energy production).

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