Many lifestyle factors like diet, exercise and psychological state can impact someone's biological age.

饮食、锻炼和心理状态等许多日常因素都会影响一个人的生理年龄。

Tech entrepreneur Bryan Johnson spends millions of dollars a year trying to reverse his biological age.

科技企业家布莱恩·约翰逊每年花数百万美元试图逆转自己的生理年龄。

However, this is different from what we call biological age, which is really measuring the state of the organism.

但这与我们所说的生物年龄不同，它真正衡量的是生物体的状态。

How an age in years corresponds to a species' biological age changed over time, they found.

他们发现，以年为单位的年龄对应于一个物种的生物学年龄是如何随时间变化的。

Anti-aging pills may effectively slow the aging  process, letting people feel younger for longer, regardless of their biological age.

抗衰老药可以有效地减缓衰老过程，让人们感觉年轻的时间更长，无论他们的生理年龄如何。

You might have heard that to get a dog's " biological" age, just multiply its age in years by seven.

您可能听说过， 要获得狗的“生理” 年龄，只需将其年龄乘以七即可。

Meanwhile, smoking can add up to 1.25 years and suffering from restless sleep can add 0.44 years to a person's biological age, according to the study.

该研究还称，吸烟使生理年龄变老 1.25 岁，失眠导致生理年龄增加 0.44 岁。

To figure out a dog's biological age, they say, multiply the natural logarithm of the dog's age in years by 16. Then add 31.

他们说，要计算狗的生理年龄， 请将狗的年龄（以年为单位）的自然对数乘以 16， 然后再加上 31。

There is the chronological age, which means how much time a person has spent on Earth, and then there is the biological age, referring to how old a person seems.

时序年龄指一个人实际度过的时间，生理年龄则指从生理机能上一个人看起来有多大。

And new diagnostic tools are now offering scientists means to calculate the " biological ages" of bodies and organs and compare them with actual calendar ages.

新的诊断工具现在为科学家提供了计算身体和器官的“生物年龄”并将其与实际日历年龄进行比较的方法。

We can use these DNA methylation patterns  to make a clock, a DNA methylation clock, also known as a Horvath Clock that  estimates your biological age.

戴维：我们可以使用这些 DNA 甲基化模式来制作一个时钟，一个 DNA 甲基化时钟， 也称为 Horvath 时钟， 可以估计您的生物年龄。

On the other hand, scientists are increasingly learning that aging and biological age are two different things, and that the former is a key risk factor for conditions such as heart disease, cancer and many more.

另一方面，科学家们逐渐认识到衰老和生理年龄是两回事，前者是心脏病、癌症等疾病的关键危险因素。

A new study from Deep Longevity, the Chinese University of Hong Kong and Stanford University found that feelings that cause poor mental health like sadness, loneliness and general unhappiness add an extra 1.65 years to a person's biological age.

香港寿康集团、香港中文大学和斯坦福大学的一项新研究发现，悲伤、孤独、痛苦等影响心理健康的情绪会使人的生理年龄变老 1.65 岁。