Now we're discovering that's not the case. Space has a primary specific effect on red blood cell regulation.

现在我们发现事实并非如此。太空对红细胞调节有主要的特异性作用。

Hallucinogens have their primary effect on perception, distorting and altering it in a variety of ways including producing hallucinations.

致幻剂对知觉有主要影响，以多种方式扭曲和改变知觉，包括产生幻觉。