I wonder if the same applies to sleep deprivation. Some people don't really do well at the hours required of jury service, one wonders if they are making an important decision with the right level of mental capacity in that case.
Arguably deliberating while being drink deprived could result in hasty judgement. Stress, like sleep deprivation, is bound to affect your decision making abilities. Everything in moderation, of course.
I hope you mean sleep deprived!
Arguably, he could be drink deprived. An alcoholic, forbidden from drinking while on a jury, would be under a lot of physical stress if we assume he or she is capable of abstaining for the duration of a trial.