They make our bodies strong to help us fight disease and slow the natural aging process.

它们能令我们的身体强壮，以帮助我们抵抗疾病和延缓自然衰老过程。

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Good skin care and healthy lifestyle choices can help delay the natural aging process and prevent many skin problems.

较好地呵护肌肤和选择健康的生活方式有助于延缓自然衰老过程并且可以预防很多皮肤疾病。

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As people get older, they generally lose some muscles and fat from their bodies as part of the natural aging process.

随着人们变老，他们普遍失去一些肌肉和脂肪从自己的身体的一部分，自然衰老进程。

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That is roughly 40 million people who have lost physical and mental capacity through the natural aging process.

WSJ: Bionic Brains and Beyond

Participants were under 55 to assure that aging effects were the result of sun exposure, not the natural aging process, Dr. Green said.

WSJ: Sunscreen Each Day Stops Wrinkles

As men in their early 30s continue to sign 10-year, nine-figure deals, everyone from GMs to agents to the players themselves has to believe that the natural aging process no longer exists, or can be beaten.

WSJ: Teixeira Knows His Limits