It occurs in elderly men, apparently as part of the aging process.

作为衰老进程的一部分，它明显发生在老年男性身上。

Scientists would soon be able to manipulate human genes to control the aging process.

科学家将很快能够通过操控人类基因来控制衰老的过程。

Too much protein in the diet may advance the aging process.

饮食中过多的蛋白质会使衰老的过程提前。

How important are genetics to the aging process?

基因对于衰老过程有何作用？

How can food and nutrients reverse the aging process?

食物和营养素如何反转衰老进程？