As we age, the lenses of the eyes thicken, and thus refract light differently.
随着我们年龄的增长，眼睛的晶状体变厚，因此对光线的折射也会发生变化。
This is evidence that our immune system really doesn't function so well when we age.
这证明我们的免疫系统在我们衰老时确实不能很好地发挥作用。
Cognitive decline is the loss of ability to learn new skills, or recall words, names, and faces that is most common as we age.
认知能力下降是指丧失学习新技能或回忆单词、名字和面孔的能力，这是随着年龄的增长而最常见的现象。
It peaks in young adulthood, levels out for a period of time, and then generally starts to slowly decline as we age.
它在青年时期达到顶峰，在一段时间内趋于平稳，然后普遍会开始随着年龄的增长而缓慢下降。
This has been linked to increasing forgetfulness as we age.
随着年龄而不断增加的健忘与这些受体息息相关。
As we age, the outer layer of tooth enamel wears away.
随着年龄增长，我们牙齿外层的釉质会慢慢地磨损。
While sleep patterns change as we age, the amount of sleep we need generally does not.
虽然睡眠模式随着年龄改变，但是我们需要睡眠的时间一般不会随着年龄改变。
But despite all our advances, it turns out we age and die at the same rate as other primates.
然而，尽管我们取得了各种各样的进步，我们还是在以和其他灵长类动物一样的速度衰老、死亡。
As we age our metabolic rate naturally slows down, just another joke Mother Nature plays on us.
当我们年长，我们的代谢率会自然地减缓，这是大自然母亲给开我们的另一个玩笑。
As we age, our blood vessels get stiffer, and that's thought to increase the risk of high blood pressure.
随着我们变老，血管逐渐硬化，这被认为增加高血压的风险。
And last year, Harvard researchers reported that strong social ties could promote brain health as we age.
去年，哈佛大学的研究人员报告说，强大的社会关系网能在我们上年纪的时候促进大脑健康。
As we age, our muscles tend to become weaker and a loss of balance means we are increasingly likely to fall.
随着年龄的增长，我们的肌肉力量往往会减弱，而失去平衡意味着我们更容易跌倒。
Sleep patterns change as we age, but disturbed sleep and waking up tired every day are not part of normal aging.
睡眠形式会随着年龄改变，但是每天睡不好、醒来感觉很累可不是正常的老化现象。
AFTER the nagging question of why we are here at all, the one about why we age and die comes a pretty close second.
我们究竟为何来到这世界是个恼人的问题，我们为何变老死亡是紧跟而来的问题。
People over age 50 need extra vitamin D because, for one thing, our skin becomes less able to make vitamin D as we age.
超过五十岁的人需要补充维他命D，因为，一方面，我们的皮肤随着年龄的增长，合成维他命D的能力也慢慢下降。
Furthermore, rather than losing many brain cells as we age, we retain them, and even generate new ones well into middle age.
而且，随着年龄增大，我们并不会损失脑细胞，相反，我们会保留它们甚至在中年阶段产生出新的脑细胞。
In large part, that's because we lose muscle cells as we age. When younger muscle cells get damaged, they're quickly repaired.
在很大程度上，这是因为随着年龄的增长，我们失去不少肌肉细胞。
Most of us harbor the intuition that we age because our bodies, like our cars, our furniture, our patience, just wear out.
我们大多数人怀着这样一种直觉：我们之所以衰老，只是因为身体遭到了损耗，就像我们的汽车、家具和我们的耐心一样。
What will the future hold for us and our children as we age? How can we increase not just our lifespan but our "healthspan"?
我们和我们的子孙后代未来的健康将会怎样？我们怎样做才能不仅延长寿命，更延长“健康寿命”？
We expect the prowess of our joints and lungs to slowly decline as we age, but the thought of our minds doing the same is intolerable.
当我们的年龄变老时，都希望自己的关节和肺部的功能衰退得慢一些，可是我们头脑思维的功能如果也随着年龄一样衰老，那是我们所无法忍受的。
For most of us, our memories fade as we age, and only the occasional song, smell or photo will take us back to a particular time and place.
对我们大多数人来说，除了偶尔被一些特定的歌曲、气味或照片带回某个场景，记忆总会随着年龄增长消退。
Over time, as we age,the number of mutations begins to outstrip the system’s ability to makerepairs, and mitochondria start malfunctioning and dying.
随着年龄的增长，久而久之，变异的数量逐渐超出了系统修复能力，线粒体开始出现故障进而停止运作。
As we age, cells typically begin to regenerate more slowly and those known as fibroblasts produce less collagen, a protein that keeps skin firm and supple.
胶原蛋白可以保持皮肤紧致圆润。随着年龄增长，细胞更新速度渐缓，成纤维细胞制造的胶原蛋白便逐步减少，来自阳光的紫外线、污染与吸烟等环境因素，则更加速这些变化。
She added that understanding the mechanisms in the brain, which affect memory as we age, will help find ways to combat conditions linked to memory loss.
她还说，了解随着年龄老化影响记忆的大脑机制有助于找到与记忆衰退有关问题的解决方法。
He says that when we are young, our bodies are probably better able to cope with modern diets. But as we age, we would be better suited to a caveman diet.
他说，年轻的时候，我们的身体可能比较容易适应现代饮食，但一旦上了年纪，我们则更适应穴居人的饮食方式。
Gerontologists have found that the influence of environmental factors such as wealth or education on lifespan fades as we age, while that of genes increases.
老年医学专家已经发现环境因素如财富和教育对寿命长度的影响在我们变老的时候就消退了，而基因的影响却在增加。
With the amount we make falling as we age, the protein has become a key ingredient of many creams that claim to rejuvenate the skin and smooth away wrinkles.
随著年龄的增长，骨胶原含量会慢慢降低，于是许多面霜便鼓吹这一成分能抚平皱纹，恢复肌肤活力。
With the amount we make falling as we age, the protein has become a key ingredient of many creams that claim to rejuvenate the skin and smooth away wrinkles.
随著年龄的增长，骨胶原含量会慢慢降低，于是许多面霜便鼓吹这一成分能抚平皱纹，恢复肌肤活力。
应用推荐