Such is the case with a new experiment that flushed old, broken-down cells from the bodies of mice, slowing their descent into the infirmities of age.

这项新实验就是将功能衰退的老化细胞从老鼠身上剥离出来，从而延缓老鼠的衰老速度。

youdao

There have been fears that because of its age and unreliability, that descent could go awry.

BBC: You are in: Sci/Tech

So the real controversy is what minimum level of solar energy at 65N is the threshold for the descent into an ice age and how unstable the weather becomes near that threshold.

FORBES: Will Angelina Jolie Help End Climate-Change Denial, And Help The Republican Party?