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Wow! Does that just go for mice?
哇，這個結果只適用于老鼠嗎？
Apparently not. Similar results have come from experiments on other animals from roundworms to most recently Rhesus monkeys.
顯然不是。用其他動物從蛔蟲到最近的獼猴所做的實驗都得出了相似的結果。
Theses monkeys, two groups of them, were give all the vitamins and minerals and other nutrients they needed, except that one group got 30% fewer calories.
這些猴子被分成了兩組，得到了它們所需的所有維他命和礦物質以及其他的營養物質，只不過一組少得到了30%的卡路里。
And now after 30 years or so, about an average lifetime for a monkey,
在30年左右后，也就是大約一只猴子的平均壽命，
it’s clear that the monkeys that have been on the calorie restricted diet are doing a lot better than the ones on that we consider a normal healthful diet.
很明顯看到那些按照卡路里限制食譜進食的猴子比那些按照我們認為是普通的健康食譜進食的猴子活得好得多。
Like in terms of blood pressure and lots of other measures,
在血壓和很多其他標準中，
the calorie-restricted monkeys are much healthier and they just look and act younger than the monkeys in the normal diet group.
卡路里限制的猴子要健康得多，而且它們比普通飲食組的猴子看起來更年輕，行為上也更年輕。
And as a group, they are living longer.
它們一整個小組活的時間都更長。
Interesting. But what’s the connection?
很有趣，但是有什么聯系呢？
Oh, with the immune system?
哦，和免疫系統有什么聯系嗎？
Well, it’s been shown that the immune system becomes much less effective as animals age.
研究顯示，隨著動物變老，它們的免疫系統會變得不那么有效。
That’s true in humans too, we think those naive T-cells just get used up, I mean it is not like the body’s always making lots of new ones.
這在人類身上也是一樣。我們認為那些幼稚型T細胞被耗盡了，我是說，身體不是一直都會制造很多新T型細胞的。
And over the course of a lifetime, as T-cell encounter more and more strange bacteria or whatever, the naive T-cells get turned into memory T-cells.
在一生中，隨著T細胞遇到越來越多的陌生細菌或者隨便其他什么細胞，幼稚型T細胞會變成記憶性T細胞。
