Re sleep deprivation inducing mania, I sometimes fast (either on 100kcal or 700kcal per day for 5-6 days), and find (as others do) that after a day or so I go into a hyperactive state—very alert, clear-minded, energetic, probably not far from mild mania. (And unlike as described in the OP, I don’t get hungry at all—or rather, only did the first couple of times I fasted. So it presumably it just takes getting used to.)
So I wonder if the analogies between sleep and eating are even closer than suggested.
Re sleep deprivation inducing mania, I sometimes fast (either on 100kcal or 700kcal per day for 5-6 days), and find (as others do) that after a day or so I go into a hyperactive state—very alert, clear-minded, energetic, probably not far from mild mania. (And unlike as described in the OP, I don’t get hungry at all—or rather, only did the first couple of times I fasted. So it presumably it just takes getting used to.)
So I wonder if the analogies between sleep and eating are even closer than suggested.