Of course, you're fueling the waking state with these stimulants, and then, of course, it gets to 11 o'clock at night, and the brain says to itself, "Actually, I need to be asleep fairly shortly.
A když udržujete čilý stav pomocí stimulantů, potom v 11 večer si mozek řekne: „Už bych měl brzo usnout.