| A | B |
| sleep deprivation | lack of sleep |
| to recover | to get better after an illness |
| tolerate | accept something you do not like |
| consistency | the quality of always being the same |
| pretty well | in a rather good way |
| reset | to return to a regular state |
| that being said | in spite of what was just said |
| over the course | during a period of time or a process |
| intrinsic | part of the basic character or nature of something |
| to have a tendency | to be likely to do something |
| clinically proven | shown scientifically through tests |
| maintain | make something continue in the same way |
| fatigue | very, very tired |
| to touch on a topic | to briefly discuss |
| to make a priority | to make something important |
| to get cranky | to become irritated, upset |
| burn the midnight oil | work very late at night |
| irritable | easily annoyed or made angry |
| naps | short sleeps in the daytime |
| to nod off | to fall asleep accidentally |
| power nap | an extra-short sleep in the middle of the day |
| shut-eye | informal term for sleep |
| be drowsy | be tired and almost asleep |
| demonstrate | show a fact clearly |
| a major concern | something important that worries you |