My understanding is that the idea is to deprive yourself of REM sleep by never sleeping long enough to reach REM as you would during a normal 90-minute sleep cycle.

我的理解是只有确保你每次睡的都不长才能强迫你的身体能快速的进入眼动睡眠。

youdao

Although Mark and my father never did reach their understanding, I now visit them in the same Cemetery in Portland-a very honorable place for two soldiers to be.

虽然马克和爸爸从未达成他们的谅解，但现在我到同一地方看望他们。他们都安息在国立公墓—对两位军人来讲都很荣耀。

youdao