芭芭拉·思卓可以回答这个问题。她的新书《人到中年，大脑的惊人秘密》提出了非常乐观的看法。

The new book "the Secret Life of the Grown-Up Brain: the surprising Talents of the Middle-Aged Mind," by Barbara Strauch, has the answers, and the news is surprisingly upbeat.

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托马斯为了给《生活科学》杂志证明这一点，他从卓思宁的网站下载了他新书的摘录。

Thomas demonstrated this for LiveScience by downloading an excerpt from Drosnin's new book from his website.

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卓思宁是怎样取得这条信息的呢？

How did Drosnin get this information?

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