As the years turned into decades, Lysander's body began to age.

岁月流逝，几十年过去了，莱山德的身体开始衰老。

Many people are already challenging these traditional attitudes to ageing.

许多人已经开始挑战待衰老的传统态度。

But as dogs get older, their aging curve begins to flatten.

但随着狗变老， 它们的衰老曲线开始变平。

What is perhaps more surprising is that the answer to these questions could have an impact on how quickly your body begins to age.

也许更令人惊的是，问题的答案可能会影响你的身体开始衰老的速度。

They have ceased to grow. The minute man ceases to grow – no matter what how old he is – is the minute he begins to be old.

他们已经成长。一个人一成长--不管他年龄多大--他就开始衰老。

People who think old age starts later, may be more conscious about their health and fitness and therefore take steps to stay in better shape.

认为衰老开始较晚的人，可能更在意自己的健康和健身，因此会采取措施保持更好的身材。

" It unties the hands of the pharmaceutical industry so that they can begin treating the disease and not just the side effects, " he said.

“解除了制药业的束缚，使他们能够开始治疗衰老种疾病，而不仅仅是治疗其副作用。”

Born in midcentury as U.S. birthrates surged in tandem with an enormous leap in prosperity after the Depression and World War II, boomers are now beginning to die in larger numbers, along with Americans over 80.

婴儿潮一代出生于二十世纪中叶，伴随着大萧条和二战后的巨大繁荣，美国出生率飙升。现在，许多婴儿潮一代以及80岁以上的美国人开始衰老去世。