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.

人已经开始挑战这些对待衰老的传统态度。

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.

也更令人惊的是，这些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.

们已经停止成长。一个人一旦停止成长--不管年龄--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.

“这解除了制药业的束缚，使们能够开始治疗衰老这种疾病，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，伴随着萧条和二战后的巨繁荣，美国出生率飙升。现在，婴儿潮一代以及80岁以上的美国人开始衰老去世。