Would be nice, but I think it’s different from the five OP examples—being well-rested isn’t a state that’s achieved by sending the brain the right chemicals.
Exactly. It doesn’t replace sleep, but (according to the US military study) removes all the “can’t concentrate”, “can’t stay alert”, “uncoordinated”, and “stupid decisions” effects of no sleep.
Would be nice, but I think it’s different from the five OP examples—being well-rested isn’t a state that’s achieved by sending the brain the right chemicals.
(But is “infatuation” just brain-chemicals?)
Modafinil is often credited with exactly this effect.
If I understand it right, it makes you feel awake “when you should”, but doesn’t actually replace sleep.
Exactly. It doesn’t replace sleep, but (according to the US military study) removes all the “can’t concentrate”, “can’t stay alert”, “uncoordinated”, and “stupid decisions” effects of no sleep.